Merge branch 'master' into multi-polling-request-refactor

osu.Game.Tests/Beatmaps/Formats/LegacyBeatmapEncoderTest.cs

@@ -169,7 +169,7 @@ namespace osu.Game.Tests.Beatmaps.Formats
 
             protected override Track GetBeatmapTrack() => throw new NotImplementedException();
 
-            protected override ISkin GetSkin() => throw new NotImplementedException();
+            protected internal override ISkin GetSkin() => throw new NotImplementedException();
 
             public override Stream GetStream(string storagePath) => throw new NotImplementedException();
         }

osu.Game.Tests/Chat/TestSceneChannelManager.cs

@@ -1,6 +1,7 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
+using System.Collections.Generic;
 using System.Linq;
 using NUnit.Framework;
 using osu.Framework.Allocation;
@@ -19,6 +20,7 @@ namespace osu.Game.Tests.Chat
     {
         private ChannelManager channelManager;
         private int currentMessageId;
+        private List<Message> sentMessages;
 
         [SetUp]
         public void Setup() => Schedule(() =>
@@ -34,6 +36,7 @@ namespace osu.Game.Tests.Chat
             AddStep("register request handling", () =>
             {
                 currentMessageId = 0;
+                sentMessages = new List<Message>();
 
                 ((DummyAPIAccess)API).HandleRequest = req =>
                 {
@@ -44,16 +47,11 @@ namespace osu.Game.Tests.Chat
                             return true;
 
                         case PostMessageRequest postMessage:
-                            postMessage.TriggerSuccess(new Message(++currentMessageId)
-                            {
-                                IsAction = postMessage.Message.IsAction,
-                                ChannelId = postMessage.Message.ChannelId,
-                                Content = postMessage.Message.Content,
-                                Links = postMessage.Message.Links,
-                                Timestamp = postMessage.Message.Timestamp,
-                                Sender = postMessage.Message.Sender
-                            });
+                            handlePostMessageRequest(postMessage);
+                            return true;
 
+                        case MarkChannelAsReadRequest markRead:
+                            handleMarkChannelAsReadRequest(markRead);
                             return true;
                     }
 
@@ -83,12 +81,65 @@ namespace osu.Game.Tests.Chat
             AddAssert("/np command received by channel 2", () => channel2.Messages.Last().Content.Contains("is listening to"));
         }
 
+        [Test]
+        public void TestMarkAsReadIgnoringLocalMessages()
+        {
+            Channel channel = null;
+
+            AddStep("join channel and select it", () =>
+            {
+                channelManager.JoinChannel(channel = createChannel(1, ChannelType.Public));
+                channelManager.CurrentChannel.Value = channel;
+            });
+
+            AddStep("post message", () => channelManager.PostMessage("Something interesting"));
+
+            AddStep("post /help command", () => channelManager.PostCommand("help", channel));
+            AddStep("post /me command with no action", () => channelManager.PostCommand("me", channel));
+            AddStep("post /join command with no channel", () => channelManager.PostCommand("join", channel));
+            AddStep("post /join command with non-existent channel", () => channelManager.PostCommand("join i-dont-exist", channel));
+            AddStep("post non-existent command", () => channelManager.PostCommand("non-existent-cmd arg", channel));
+
+            AddStep("mark channel as read", () => channelManager.MarkChannelAsRead(channel));
+            AddAssert("channel's last read ID is set to the latest message", () => channel.LastReadId == sentMessages.Last().Id);
+        }
+
+        private void handlePostMessageRequest(PostMessageRequest request)
+        {
+            var message = new Message(++currentMessageId)
+            {
+                IsAction = request.Message.IsAction,
+                ChannelId = request.Message.ChannelId,
+                Content = request.Message.Content,
+                Links = request.Message.Links,
+                Timestamp = request.Message.Timestamp,
+                Sender = request.Message.Sender
+            };
+
+            sentMessages.Add(message);
+            request.TriggerSuccess(message);
+        }
+
+        private void handleMarkChannelAsReadRequest(MarkChannelAsReadRequest request)
+        {
+            // only accept messages that were sent through the API
+            if (sentMessages.Contains(request.Message))
+            {
+                request.TriggerSuccess();
+            }
+            else
+            {
+                request.TriggerFailure(new APIException("unknown message!", null));
+            }
+        }
+
         private Channel createChannel(int id, ChannelType type) => new Channel(new User())
         {
             Id = id,
             Name = $"Channel {id}",
             Topic = $"Topic of channel {id} with type {type}",
             Type = type,
+            LastMessageId = 0,
         };
 
         private class ChannelManagerContainer : CompositeDrawable

osu.Game.Tests/Gameplay/TestSceneStoryboardSamples.cs

@@ -204,7 +204,7 @@ namespace osu.Game.Tests.Gameplay
                 this.resources = resources;
             }
 
-            protected override ISkin GetSkin() => new TestSkin("test-sample", resources);
+            protected internal override ISkin GetSkin() => new TestSkin("test-sample", resources);
         }
 
         private class TestDrawableStoryboardSample : DrawableStoryboardSample

osu.Game.Tests/Skins/TestSceneSkinConfigurationLookup.cs

@@ -133,11 +133,12 @@ namespace osu.Game.Tests.Skins
         [Test]
         public void TestEmptyComboColoursNoFallback()
         {
-            AddStep("Add custom combo colours to user skin", () => userSource.Configuration.AddComboColours(
+            AddStep("Add custom combo colours to user skin", () => userSource.Configuration.CustomComboColours = new List<Color4>
+            {
                 new Color4(100, 150, 200, 255),
                 new Color4(55, 110, 166, 255),
                 new Color4(75, 125, 175, 255)
-            ));
+            });
 
             AddStep("Disallow default colours fallback in beatmap skin", () => beatmapSource.Configuration.AllowDefaultComboColoursFallback = false);
 

osu.Game.Tests/Visual/Gameplay/TestSceneBeatmapSkinFallbacks.cs

@@ -111,7 +111,7 @@ namespace osu.Game.Tests.Visual.Gameplay
                 this.beatmapSkin = beatmapSkin;
             }
 
-            protected override ISkin GetSkin() => beatmapSkin;
+            protected internal override ISkin GetSkin() => beatmapSkin;
         }
 
         private class TestOsuRuleset : OsuRuleset

osu.Game.Tests/Visual/Gameplay/TestSceneHUDOverlay.cs

@@ -12,6 +12,7 @@ using osu.Game.Configuration;
 using osu.Game.Rulesets.Mods;
 using osu.Game.Rulesets.Scoring;
 using osu.Game.Screens.Play;
+using osu.Game.Skinning;
 using osuTK.Input;
 
 namespace osu.Game.Tests.Visual.Gameplay
@@ -142,6 +143,22 @@ namespace osu.Game.Tests.Visual.Gameplay
             AddStep("return value", () => config.SetValue(OsuSetting.KeyOverlay, keyCounterVisibleValue));
         }
 
+        [Test]
+        public void TestHiddenHUDDoesntBlockSkinnableComponentsLoad()
+        {
+            HUDVisibilityMode originalConfigValue = default;
+
+            AddStep("get original config value", () => originalConfigValue = config.Get<HUDVisibilityMode>(OsuSetting.HUDVisibilityMode));
+
+            AddStep("set hud to never show", () => config.SetValue(OsuSetting.HUDVisibilityMode, HUDVisibilityMode.Never));
+
+            createNew();
+            AddUntilStep("wait for hud load", () => hudOverlay.IsLoaded);
+            AddUntilStep("skinnable components loaded", () => hudOverlay.ChildrenOfType<SkinnableTargetContainer>().Single().ComponentsLoaded);
+
+            AddStep("set original config value", () => config.SetValue(OsuSetting.HUDVisibilityMode, originalConfigValue));
+        }
+
         private void createNew(Action<HUDOverlay> action = null)
         {
             AddStep("create overlay", () =>

osu.Game.Tests/Visual/Mods/TestSceneModFailCondition.cs

@@ -0,0 +1,55 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using System.Linq;
+using NUnit.Framework;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Testing;
+using osu.Game.Rulesets;
+using osu.Game.Rulesets.Osu;
+using osu.Game.Rulesets.Osu.Mods;
+using osu.Game.Screens.Play;
+
+namespace osu.Game.Tests.Visual.Mods
+{
+    public class TestSceneModFailCondition : ModTestScene
+    {
+        private bool restartRequested;
+
+        protected override Ruleset CreatePlayerRuleset() => new OsuRuleset();
+
+        protected override TestPlayer CreateModPlayer(Ruleset ruleset)
+        {
+            var player = base.CreateModPlayer(ruleset);
+            player.RestartRequested = () => restartRequested = true;
+            return player;
+        }
+
+        protected override bool AllowFail => true;
+
+        [SetUpSteps]
+        public void SetUp()
+        {
+            AddStep("reset flag", () => restartRequested = false);
+        }
+
+        [Test]
+        public void TestRestartOnFailDisabled() => CreateModTest(new ModTestData
+        {
+            Autoplay = false,
+            Mod = new OsuModSuddenDeath(),
+            PassCondition = () => !restartRequested && Player.ChildrenOfType<FailOverlay>().Single().State.Value == Visibility.Visible
+        });
+
+        [Test]
+        public void TestRestartOnFailEnabled() => CreateModTest(new ModTestData
+        {
+            Autoplay = false,
+            Mod = new OsuModSuddenDeath
+            {
+                Restart = { Value = true }
+            },
+            PassCondition = () => restartRequested && Player.ChildrenOfType<FailOverlay>().Single().State.Value == Visibility.Hidden
+        });
+    }
+}

osu.Game.Tests/Visual/Multiplayer/TestSceneMultiplayerParticipantsList.cs

@@ -4,6 +4,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using NUnit.Framework;
+using osu.Framework.Extensions.ObjectExtensions;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Sprites;
 using osu.Framework.Testing;
@@ -48,9 +49,15 @@ namespace osu.Game.Tests.Visual.Multiplayer
         {
             AddAssert("one unique panel", () => this.ChildrenOfType<ParticipantPanel>().Select(p => p.User).Distinct().Count() == 1);
 
-            AddStep("add non-resolvable user", () => Client.AddNullUser(-3));
+            AddStep("add non-resolvable user", () => Client.AddNullUser());
+            AddAssert("null user added", () => Client.Room.AsNonNull().Users.Count(u => u.User == null) == 1);
 
             AddUntilStep("two unique panels", () => this.ChildrenOfType<ParticipantPanel>().Select(p => p.User).Distinct().Count() == 2);
+
+            AddStep("kick null user", () => this.ChildrenOfType<ParticipantPanel>().Single(p => p.User.User == null)
+                                                .ChildrenOfType<ParticipantPanel.KickButton>().Single().TriggerClick());
+
+            AddAssert("null user kicked", () => Client.Room.AsNonNull().Users.Count == 1);
         }
 
         [Test]

osu.Game.Tests/Visual/UserInterface/TestSceneModDifficultyAdjustSettings.cs

@@ -1,8 +1,10 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
+using System.Collections.Generic;
 using System.Linq;
 using NUnit.Framework;
+using osu.Framework.Extensions.IEnumerableExtensions;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Shapes;
@@ -174,6 +176,60 @@ namespace osu.Game.Tests.Visual.UserInterface
             checkBindableAtValue("Circle Size", null);
         }
 
+        [Test]
+        public void TestModSettingChangeTracker()
+        {
+            ModSettingChangeTracker tracker = null;
+            Queue<Mod> settingsChangedQueue = null;
+
+            setBeatmapWithDifficultyParameters(5);
+
+            AddStep("add mod settings change tracker", () =>
+            {
+                settingsChangedQueue = new Queue<Mod>();
+
+                tracker = new ModSettingChangeTracker(modDifficultyAdjust.Yield())
+                {
+                    SettingChanged = settingsChangedQueue.Enqueue
+                };
+            });
+
+            AddAssert("no settings changed", () => settingsChangedQueue.Count == 0);
+
+            setSliderValue("Circle Size", 3);
+
+            settingsChangedFired();
+
+            setSliderValue("Circle Size", 5);
+            checkBindableAtValue("Circle Size", 5);
+
+            settingsChangedFired();
+
+            AddStep("reset mod settings", () => modDifficultyAdjust.CircleSize.SetDefault());
+            checkBindableAtValue("Circle Size", null);
+
+            settingsChangedFired();
+
+            setExtendedLimits(true);
+
+            settingsChangedFired();
+
+            AddStep("dispose tracker", () =>
+            {
+                tracker.Dispose();
+                tracker = null;
+            });
+
+            void settingsChangedFired()
+            {
+                AddAssert("setting changed event fired", () =>
+                {
+                    settingsChangedQueue.Dequeue();
+                    return settingsChangedQueue.Count == 0;
+                });
+            }
+        }
+
         private void resetToDefault(string name)
         {
             AddStep($"Reset {name} to default", () =>

osu.Game.Tests/WaveformTestBeatmap.cs

@@ -53,7 +53,7 @@ namespace osu.Game.Tests
 
         protected override Waveform GetWaveform() => new Waveform(trackStore.GetStream(firstAudioFile));
 
-        protected override ISkin GetSkin() => null;
+        protected internal override ISkin GetSkin() => null;
 
         public override Stream GetStream(string storagePath) => null;
 

osu.Game/Beatmaps/BeatmapManager.cs

@@ -534,7 +534,7 @@ namespace osu.Game.Beatmaps
             protected override IBeatmap GetBeatmap() => beatmap;
             protected override Texture GetBackground() => null;
             protected override Track GetBeatmapTrack() => null;
-            protected override ISkin GetSkin() => null;
+            protected internal override ISkin GetSkin() => null;
             public override Stream GetStream(string storagePath) => null;
         }
     }

osu.Game/Beatmaps/BeatmapManager_WorkingBeatmap.cs

@@ -128,7 +128,7 @@ namespace osu.Game.Beatmaps
                 return storyboard;
             }
 
-            protected override ISkin GetSkin()
+            protected internal override ISkin GetSkin()
             {
                 try
                 {

osu.Game/Beatmaps/DummyWorkingBeatmap.cs

@@ -50,7 +50,7 @@ namespace osu.Game.Beatmaps
 
         protected override Track GetBeatmapTrack() => GetVirtualTrack();
 
-        protected override ISkin GetSkin() => null;
+        protected internal override ISkin GetSkin() => null;
 
         public override Stream GetStream(string storagePath) => null;
 

osu.Game/Beatmaps/Formats/IHasComboColours.cs

@@ -1,6 +1,7 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
+using System;
 using System.Collections.Generic;
 using osuTK.Graphics;
 
@@ -13,9 +14,17 @@ namespace osu.Game.Beatmaps.Formats
         /// </summary>
         IReadOnlyList<Color4> ComboColours { get; }
 
+        /// <summary>
+        /// The list of custom combo colours.
+        /// If non-empty, <see cref="ComboColours"/> will return these colours;
+        /// if empty, <see cref="ComboColours"/> will fall back to default combo colours.
+        /// </summary>
+        List<Color4> CustomComboColours { get; }
+
         /// <summary>
         /// Adds combo colours to the list.
         /// </summary>
+        [Obsolete("Use CustomComboColours directly.")] // can be removed 20220215
         void AddComboColours(params Color4[] colours);
     }
 }

osu.Game/Beatmaps/Formats/LegacyDecoder.cs

@@ -123,7 +123,7 @@ namespace osu.Game.Beatmaps.Formats
             {
                 if (!(output is IHasComboColours tHasComboColours)) return;
 
-                tHasComboColours.AddComboColours(colour);
+                tHasComboColours.CustomComboColours.Add(colour);
             }
             else
             {

osu.Game/Beatmaps/WorkingBeatmap.cs

@@ -327,7 +327,15 @@ namespace osu.Game.Beatmaps
         public bool SkinLoaded => skin.IsResultAvailable;
         public ISkin Skin => skin.Value;
 
-        protected abstract ISkin GetSkin();
+        /// <summary>
+        /// Creates a new skin instance for this beatmap.
+        /// </summary>
+        /// <remarks>
+        /// This should only be called externally in scenarios where it is explicitly desired to get a new instance of a skin
+        /// (e.g. for editing purposes, to avoid state pollution).
+        /// For standard reading purposes, <see cref="Skin"/> should always be used directly.
+        /// </remarks>
+        protected internal abstract ISkin GetSkin();
 
         private readonly RecyclableLazy<ISkin> skin;
 

osu.Game/Configuration/OsuConfigManager.cs

@@ -101,7 +101,7 @@ namespace osu.Game.Configuration
             SetDefault(OsuSetting.HitLighting, true);
 
             SetDefault(OsuSetting.HUDVisibilityMode, HUDVisibilityMode.Always);
-            SetDefault(OsuSetting.ShowDifficultyGraph, true);
+            SetDefault(OsuSetting.ShowProgressGraph, true);
             SetDefault(OsuSetting.ShowHealthDisplayWhenCantFail, true);
             SetDefault(OsuSetting.FadePlayfieldWhenHealthLow, true);
             SetDefault(OsuSetting.KeyOverlay, false);
@@ -201,6 +201,8 @@ namespace osu.Game.Configuration
         public Func<GlobalAction, string> LookupKeyBindings { get; set; }
     }
 
+    // IMPORTANT: These are used in user configuration files.
+    // The naming of these keys should not be changed once they are deployed in a release, unless migration logic is also added.
     public enum OsuSetting
     {
         Ruleset,
@@ -217,7 +219,7 @@ namespace osu.Game.Configuration
         AlwaysPlayFirstComboBreak,
         FloatingComments,
         HUDVisibilityMode,
-        ShowDifficultyGraph,
+        ShowProgressGraph,
         ShowHealthDisplayWhenCantFail,
         FadePlayfieldWhenHealthLow,
         MouseDisableButtons,

osu.Game/Localisation/AudioSettingsStrings.cs

@@ -0,0 +1,64 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using osu.Framework.Localisation;
+
+namespace osu.Game.Localisation
+{
+    public static class AudioSettingsStrings
+    {
+        private const string prefix = @"osu.Game.Resources.Localisation.AudioSettings";
+
+        /// <summary>
+        /// "Audio"
+        /// </summary>
+        public static LocalisableString AudioSectionHeader => new TranslatableString(getKey(@"audio_section_header"), @"Audio");
+
+        /// <summary>
+        /// "Devices"
+        /// </summary>
+        public static LocalisableString AudioDevicesHeader => new TranslatableString(getKey(@"audio_devices_header"), @"Devices");
+
+        /// <summary>
+        /// "Volume"
+        /// </summary>
+        public static LocalisableString VolumeHeader => new TranslatableString(getKey(@"volume_header"), @"Volume");
+
+        /// <summary>
+        /// "Master"
+        /// </summary>
+        public static LocalisableString MasterVolume => new TranslatableString(getKey(@"master_volume"), @"Master");
+
+        /// <summary>
+        /// "Master (window inactive)"
+        /// </summary>
+        public static LocalisableString MasterVolumeInactive => new TranslatableString(getKey(@"master_volume_inactive"), @"Master (window inactive)");
+
+        /// <summary>
+        /// "Effect"
+        /// </summary>
+        public static LocalisableString EffectVolume => new TranslatableString(getKey(@"effect_volume"), @"Effect");
+
+        /// <summary>
+        /// "Music"
+        /// </summary>
+        public static LocalisableString MusicVolume => new TranslatableString(getKey(@"music_volume"), @"Music");
+
+        /// <summary>
+        /// "Offset Adjustment"
+        /// </summary>
+        public static LocalisableString OffsetHeader => new TranslatableString(getKey(@"offset_header"), @"Offset Adjustment");
+
+        /// <summary>
+        /// "Audio offset"
+        /// </summary>
+        public static LocalisableString AudioOffset => new TranslatableString(getKey(@"audio_offset"), @"Audio offset");
+
+        /// <summary>
+        /// "Offset wizard"
+        /// </summary>
+        public static LocalisableString OffsetWizard => new TranslatableString(getKey(@"offset_wizard"), @"Offset wizard");
+
+        private static string getKey(string key) => $"{prefix}:{key}";
+    }
+}

osu.Game/Localisation/CommonStrings.cs

@@ -14,11 +14,21 @@ namespace osu.Game.Localisation
         /// </summary>
         public static LocalisableString Cancel => new TranslatableString(getKey(@"cancel"), @"Cancel");
 
+        /// <summary>
+        /// "Clear"
+        /// </summary>
+        public static LocalisableString Clear => new TranslatableString(getKey(@"clear"), @"Clear");
+
         /// <summary>
         /// "Enabled"
         /// </summary>
         public static LocalisableString Enabled => new TranslatableString(getKey(@"enabled"), @"Enabled");
 
+        /// <summary>
+        /// "Default"
+        /// </summary>
+        public static LocalisableString Default => new TranslatableString(getKey(@"default"), @"Default");
+
         /// <summary>
         /// "Width"
         /// </summary>
@@ -31,4 +41,4 @@ namespace osu.Game.Localisation
 
         private static string getKey(string key) => $@"{prefix}:{key}";
     }
-}
+}

osu.Game/Localisation/DebugSettingsStrings.cs

@@ -0,0 +1,49 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using osu.Framework.Localisation;
+
+namespace osu.Game.Localisation
+{
+    public static class DebugSettingsStrings
+    {
+        private const string prefix = @"osu.Game.Resources.Localisation.DebugSettings";
+
+        /// <summary>
+        /// "Debug"
+        /// </summary>
+        public static LocalisableString DebugSectionHeader => new TranslatableString(getKey(@"debug_section_header"), @"Debug");
+
+        /// <summary>
+        /// "General"
+        /// </summary>
+        public static LocalisableString GeneralHeader => new TranslatableString(getKey(@"general_header"), @"General");
+
+        /// <summary>
+        /// "Show log overlay"
+        /// </summary>
+        public static LocalisableString ShowLogOverlay => new TranslatableString(getKey(@"show_log_overlay"), @"Show log overlay");
+
+        /// <summary>
+        /// "Bypass front-to-back render pass"
+        /// </summary>
+        public static LocalisableString BypassFrontToBackPass => new TranslatableString(getKey(@"bypass_front_to_back_pass"), @"Bypass front-to-back render pass");
+
+        /// <summary>
+        /// "Import files"
+        /// </summary>
+        public static LocalisableString ImportFiles => new TranslatableString(getKey(@"import_files"), @"Import files");
+
+        /// <summary>
+        /// "Memory"
+        /// </summary>
+        public static LocalisableString MemoryHeader => new TranslatableString(getKey(@"memory_header"), @"Memory");
+
+        /// <summary>
+        /// "Clear all caches"
+        /// </summary>
+        public static LocalisableString ClearAllCaches => new TranslatableString(getKey(@"clear_all_caches"), @"Clear all caches");
+
+        private static string getKey(string key) => $"{prefix}:{key}";
+    }
+}

osu.Game/Localisation/GameplaySettingsStrings.cs

@@ -0,0 +1,94 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using osu.Framework.Localisation;
+
+namespace osu.Game.Localisation
+{
+    public static class GameplaySettingsStrings
+    {
+        private const string prefix = @"osu.Game.Resources.Localisation.GameplaySettings";
+
+        /// <summary>
+        /// "Gameplay"
+        /// </summary>
+        public static LocalisableString GameplaySectionHeader => new TranslatableString(getKey(@"gameplay_section_header"), @"Gameplay");
+
+        /// <summary>
+        /// "General"
+        /// </summary>
+        public static LocalisableString GeneralHeader => new TranslatableString(getKey(@"general_header"), @"General");
+
+        /// <summary>
+        /// "Background dim"
+        /// </summary>
+        public static LocalisableString BackgroundDim => new TranslatableString(getKey(@"dim"), @"Background dim");
+
+        /// <summary>
+        /// "Background blur"
+        /// </summary>
+        public static LocalisableString BackgroundBlur => new TranslatableString(getKey(@"blur"), @"Background blur");
+
+        /// <summary>
+        /// "Lighten playfield during breaks"
+        /// </summary>
+        public static LocalisableString LightenDuringBreaks => new TranslatableString(getKey(@"lighten_during_breaks"), @"Lighten playfield during breaks");
+
+        /// <summary>
+        /// "HUD overlay visibility mode"
+        /// </summary>
+        public static LocalisableString HUDVisibilityMode => new TranslatableString(getKey(@"hud_visibility_mode"), @"HUD overlay visibility mode");
+
+        /// <summary>
+        /// "Show difficulty graph on progress bar"
+        /// </summary>
+        public static LocalisableString ShowDifficultyGraph => new TranslatableString(getKey(@"show_difficulty_graph"), @"Show difficulty graph on progress bar");
+
+        /// <summary>
+        /// "Show health display even when you can't fail"
+        /// </summary>
+        public static LocalisableString ShowHealthDisplayWhenCantFail => new TranslatableString(getKey(@"show_health_display_when_cant_fail"), @"Show health display even when you can't fail");
+
+        /// <summary>
+        /// "Fade playfield to red when health is low"
+        /// </summary>
+        public static LocalisableString FadePlayfieldWhenHealthLow => new TranslatableString(getKey(@"fade_playfield_when_health_low"), @"Fade playfield to red when health is low");
+
+        /// <summary>
+        /// "Always show key overlay"
+        /// </summary>
+        public static LocalisableString AlwaysShowKeyOverlay => new TranslatableString(getKey(@"key_overlay"), @"Always show key overlay");
+
+        /// <summary>
+        /// "Positional hitsounds"
+        /// </summary>
+        public static LocalisableString PositionalHitsounds => new TranslatableString(getKey(@"positional_hitsounds"), @"Positional hitsounds");
+
+        /// <summary>
+        /// "Always play first combo break sound"
+        /// </summary>
+        public static LocalisableString AlwaysPlayFirstComboBreak => new TranslatableString(getKey(@"always_play_first_combo_break"), @"Always play first combo break sound");
+
+        /// <summary>
+        /// "Score display mode"
+        /// </summary>
+        public static LocalisableString ScoreDisplayMode => new TranslatableString(getKey(@"score_display_mode"), @"Score display mode");
+
+        /// <summary>
+        /// "Disable Windows key during gameplay"
+        /// </summary>
+        public static LocalisableString DisableWinKey => new TranslatableString(getKey(@"disable_win_key"), @"Disable Windows key during gameplay");
+
+        /// <summary>
+        /// "Mods"
+        /// </summary>
+        public static LocalisableString ModsHeader => new TranslatableString(getKey(@"mods_header"), @"Mods");
+
+        /// <summary>
+        /// "Increase visibility of first object when visual impairment mods are enabled"
+        /// </summary>
+        public static LocalisableString IncreaseFirstObjectVisibility => new TranslatableString(getKey(@"increase_first_object_visibility"), @"Increase visibility of first object when visual impairment mods are enabled");
+
+        private static string getKey(string key) => $"{prefix}:{key}";
+    }
+}

osu.Game/Localisation/GeneralSettingsStrings.cs

@@ -0,0 +1,59 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using osu.Framework.Localisation;
+
+namespace osu.Game.Localisation
+{
+    public static class GeneralSettingsStrings
+    {
+        private const string prefix = @"osu.Game.Resources.Localisation.GeneralSettings";
+
+        /// <summary>
+        /// "General"
+        /// </summary>
+        public static LocalisableString GeneralSectionHeader => new TranslatableString(getKey(@"general_section_header"), @"General");
+
+        /// <summary>
+        /// "Language"
+        /// </summary>
+        public static LocalisableString LanguageHeader => new TranslatableString(getKey(@"language_header"), @"Language");
+
+        /// <summary>
+        /// "Language"
+        /// </summary>
+        public static LocalisableString LanguageDropdown => new TranslatableString(getKey(@"language_dropdown"), @"Language");
+
+        /// <summary>
+        /// "Prefer metadata in original language"
+        /// </summary>
+        public static LocalisableString PreferOriginalMetadataLanguage => new TranslatableString(getKey(@"prefer_original"), @"Prefer metadata in original language");
+
+        /// <summary>
+        /// "Updates"
+        /// </summary>
+        public static LocalisableString UpdateHeader => new TranslatableString(getKey(@"update_header"), @"Updates");
+
+        /// <summary>
+        /// "Release stream"
+        /// </summary>
+        public static LocalisableString ReleaseStream => new TranslatableString(getKey(@"release_stream"), @"Release stream");
+
+        /// <summary>
+        /// "Check for updates"
+        /// </summary>
+        public static LocalisableString CheckUpdate => new TranslatableString(getKey(@"check_update"), @"Check for updates");
+
+        /// <summary>
+        /// "Open osu! folder"
+        /// </summary>
+        public static LocalisableString OpenOsuFolder => new TranslatableString(getKey(@"open_osu_folder"), @"Open osu! folder");
+
+        /// <summary>
+        /// "Change folder location..."
+        /// </summary>
+        public static LocalisableString ChangeFolderLocation => new TranslatableString(getKey(@"change_folder_location"), @"Change folder location...");
+
+        private static string getKey(string key) => $"{prefix}:{key}";
+    }
+}

osu.Game/Localisation/GraphicsSettingsStrings.cs

@@ -0,0 +1,119 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using osu.Framework.Localisation;
+
+namespace osu.Game.Localisation
+{
+    public static class GraphicsSettingsStrings
+    {
+        private const string prefix = @"osu.Game.Resources.Localisation.GraphicsSettings";
+
+        /// <summary>
+        /// "Graphics"
+        /// </summary>
+        public static LocalisableString GraphicsSectionHeader => new TranslatableString(getKey(@"graphics_section_header"), @"Graphics");
+
+        /// <summary>
+        /// "Renderer"
+        /// </summary>
+        public static LocalisableString RendererHeader => new TranslatableString(getKey(@"renderer_header"), @"Renderer");
+
+        /// <summary>
+        /// "Frame limiter"
+        /// </summary>
+        public static LocalisableString FrameLimiter => new TranslatableString(getKey(@"frame_limiter"), @"Frame limiter");
+
+        /// <summary>
+        /// "Threading mode"
+        /// </summary>
+        public static LocalisableString ThreadingMode => new TranslatableString(getKey(@"threading_mode"), @"Threading mode");
+
+        /// <summary>
+        /// "Show FPS"
+        /// </summary>
+        public static LocalisableString ShowFPS => new TranslatableString(getKey(@"show_fps"), @"Show FPS");
+
+        /// <summary>
+        /// "Using unlimited frame limiter can lead to stutters, bad performance and overheating. It will not improve perceived latency. "2x refresh rate" is recommended."
+        /// </summary>
+        public static LocalisableString UnlimitedFramesNote => new TranslatableString(getKey(@"unlimited_frames_note"), @"Using unlimited frame limiter can lead to stutters, bad performance and overheating. It will not improve perceived latency. ""2x refresh rate"" is recommended.");
+
+        /// <summary>
+        /// "Layout"
+        /// </summary>
+        public static LocalisableString LayoutHeader => new TranslatableString(getKey(@"layout_header"), @"Layout");
+
+        /// <summary>
+        /// "Screen mode"
+        /// </summary>
+        public static LocalisableString ScreenMode => new TranslatableString(getKey(@"screen_mode"), @"Screen mode");
+
+        /// <summary>
+        /// "Resolution"
+        /// </summary>
+        public static LocalisableString Resolution => new TranslatableString(getKey(@"resolution"), @"Resolution");
+
+        /// <summary>
+        /// "UI scaling"
+        /// </summary>
+        public static LocalisableString UIScaling => new TranslatableString(getKey(@"ui_scaling"), @"UI scaling");
+
+        /// <summary>
+        /// "Screen scaling"
+        /// </summary>
+        public static LocalisableString ScreenScaling => new TranslatableString(getKey(@"screen_scaling"), @"Screen scaling");
+
+        /// <summary>
+        /// "Horizontal position"
+        /// </summary>
+        public static LocalisableString HorizontalPosition => new TranslatableString(getKey(@"horizontal_position"), @"Horizontal position");
+
+        /// <summary>
+        /// "Vertical position"
+        /// </summary>
+        public static LocalisableString VerticalPosition => new TranslatableString(getKey(@"vertical_position"), @"Vertical position");
+
+        /// <summary>
+        /// "Horizontal scale"
+        /// </summary>
+        public static LocalisableString HorizontalScale => new TranslatableString(getKey(@"horizontal_scale"), @"Horizontal scale");
+
+        /// <summary>
+        /// "Vertical scale"
+        /// </summary>
+        public static LocalisableString VerticalScale => new TranslatableString(getKey(@"vertical_scale"), @"Vertical scale");
+
+        /// <summary>
+        /// "Running without fullscreen mode will increase your input latency!"
+        /// </summary>
+        public static LocalisableString NotFullscreenNote => new TranslatableString(getKey(@"not_fullscreen_note"), @"Running without fullscreen mode will increase your input latency!");
+
+        /// <summary>
+        /// "Detail Settings"
+        /// </summary>
+        public static LocalisableString DetailSettingsHeader => new TranslatableString(getKey(@"detail_settings_header"), @"Detail Settings");
+
+        /// <summary>
+        /// "Storyboard / video"
+        /// </summary>
+        public static LocalisableString StoryboardVideo => new TranslatableString(getKey(@"storyboard_video"), @"Storyboard / video");
+
+        /// <summary>
+        /// "Hit lighting"
+        /// </summary>
+        public static LocalisableString HitLighting => new TranslatableString(getKey(@"hit_lighting"), @"Hit lighting");
+
+        /// <summary>
+        /// "Screenshot format"
+        /// </summary>
+        public static LocalisableString ScreenshotFormat => new TranslatableString(getKey(@"screenshot_format"), @"Screenshot format");
+
+        /// <summary>
+        /// "Show menu cursor in screenshots"
+        /// </summary>
+        public static LocalisableString ShowCursorInScreenshots => new TranslatableString(getKey(@"show_cursor_in_screenshots"), @"Show menu cursor in screenshots");
+
+        private static string getKey(string key) => $"{prefix}:{key}";
+    }
+}

osu.Game/Localisation/InputSettingsStrings.cs

@@ -0,0 +1,59 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using osu.Framework.Localisation;
+
+namespace osu.Game.Localisation
+{
+    public static class InputSettingsStrings
+    {
+        private const string prefix = @"osu.Game.Resources.Localisation.InputSettings";
+
+        /// <summary>
+        /// "Input"
+        /// </summary>
+        public static LocalisableString InputSectionHeader => new TranslatableString(getKey(@"input_section_header"), @"Input");
+
+        /// <summary>
+        /// "Global"
+        /// </summary>
+        public static LocalisableString GlobalKeyBindingHeader => new TranslatableString(getKey(@"global_key_binding_header"), @"Global");
+
+        /// <summary>
+        /// "Song Select"
+        /// </summary>
+        public static LocalisableString SongSelectSection => new TranslatableString(getKey(@"song_select_section"), @"Song Select");
+
+        /// <summary>
+        /// "In Game"
+        /// </summary>
+        public static LocalisableString InGameSection => new TranslatableString(getKey(@"in_game_section"), @"In Game");
+
+        /// <summary>
+        /// "Audio"
+        /// </summary>
+        public static LocalisableString AudioSection => new TranslatableString(getKey(@"audio_section"), @"Audio");
+
+        /// <summary>
+        /// "Editor"
+        /// </summary>
+        public static LocalisableString EditorSection => new TranslatableString(getKey(@"editor_section"), @"Editor");
+
+        /// <summary>
+        /// "Reset all bindings in section"
+        /// </summary>
+        public static LocalisableString ResetSectionButton => new TranslatableString(getKey(@"reset_section_button"), @"Reset all bindings in section");
+
+        /// <summary>
+        /// "key configuration"
+        /// </summary>
+        public static LocalisableString KeyBindingPanelHeader => new TranslatableString(getKey(@"key_binding_panel_header"), @"key configuration");
+
+        /// <summary>
+        /// "Customise your keys!"
+        /// </summary>
+        public static LocalisableString KeyBindingPanelDescription => new TranslatableString(getKey(@"key_binding_panel_description"), @"Customise your keys!");
+
+        private static string getKey(string key) => $"{prefix}:{key}";
+    }
+}

osu.Game/Localisation/MaintenanceSettingsStrings.cs

@@ -0,0 +1,74 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using osu.Framework.Localisation;
+
+namespace osu.Game.Localisation
+{
+    public static class MaintenanceSettingsStrings
+    {
+        private const string prefix = @"osu.Game.Resources.Localisation.MaintenanceSettings";
+
+        /// <summary>
+        /// "Maintenance"
+        /// </summary>
+        public static LocalisableString MaintenanceSectionHeader => new TranslatableString(getKey(@"maintenance_section_header"), @"Maintenance");
+
+        /// <summary>
+        /// "Select directory"
+        /// </summary>
+        public static LocalisableString SelectDirectory => new TranslatableString(getKey(@"select_directory"), @"Select directory");
+
+        /// <summary>
+        /// "Import beatmaps from stable"
+        /// </summary>
+        public static LocalisableString ImportBeatmapsFromStable => new TranslatableString(getKey(@"import_beatmaps_from_stable"), @"Import beatmaps from stable");
+
+        /// <summary>
+        /// "Delete ALL beatmaps"
+        /// </summary>
+        public static LocalisableString DeleteAllBeatmaps => new TranslatableString(getKey(@"delete_all_beatmaps"), @"Delete ALL beatmaps");
+
+        /// <summary>
+        /// "Import scores from stable"
+        /// </summary>
+        public static LocalisableString ImportScoresFromStable => new TranslatableString(getKey(@"import_scores_from_stable"), @"Import scores from stable");
+
+        /// <summary>
+        /// "Delete ALL scores"
+        /// </summary>
+        public static LocalisableString DeleteAllScores => new TranslatableString(getKey(@"delete_all_scores"), @"Delete ALL scores");
+
+        /// <summary>
+        /// "Import skins from stable"
+        /// </summary>
+        public static LocalisableString ImportSkinsFromStable => new TranslatableString(getKey(@"import_skins_from_stable"), @"Import skins from stable");
+
+        /// <summary>
+        /// "Delete ALL skins"
+        /// </summary>
+        public static LocalisableString DeleteAllSkins => new TranslatableString(getKey(@"delete_all_skins"), @"Delete ALL skins");
+
+        /// <summary>
+        /// "Import collections from stable"
+        /// </summary>
+        public static LocalisableString ImportCollectionsFromStable => new TranslatableString(getKey(@"import_collections_from_stable"), @"Import collections from stable");
+
+        /// <summary>
+        /// "Delete ALL collections"
+        /// </summary>
+        public static LocalisableString DeleteAllCollections => new TranslatableString(getKey(@"delete_all_collections"), @"Delete ALL collections");
+
+        /// <summary>
+        /// "Restore all hidden difficulties"
+        /// </summary>
+        public static LocalisableString RestoreAllHiddenDifficulties => new TranslatableString(getKey(@"restore_all_hidden_difficulties"), @"Restore all hidden difficulties");
+
+        /// <summary>
+        /// "Restore all recently deleted beatmaps"
+        /// </summary>
+        public static LocalisableString RestoreAllRecentlyDeletedBeatmaps => new TranslatableString(getKey(@"restore_all_recently_deleted_beatmaps"), @"Restore all recently deleted beatmaps");
+
+        private static string getKey(string key) => $"{prefix}:{key}";
+    }
+}

osu.Game/Localisation/OnlineSettingsStrings.cs

@@ -0,0 +1,69 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using osu.Framework.Localisation;
+
+namespace osu.Game.Localisation
+{
+    public static class OnlineSettingsStrings
+    {
+        private const string prefix = @"osu.Game.Resources.Localisation.OnlineSettings";
+
+        /// <summary>
+        /// "Online"
+        /// </summary>
+        public static LocalisableString OnlineSectionHeader => new TranslatableString(getKey(@"online_section_header"), @"Online");
+
+        /// <summary>
+        /// "Alerts and Privacy"
+        /// </summary>
+        public static LocalisableString AlertsAndPrivacyHeader => new TranslatableString(getKey(@"alerts_and_privacy_header"), @"Alerts and Privacy");
+
+        /// <summary>
+        /// "Show a notification when someone mentions your name"
+        /// </summary>
+        public static LocalisableString NotifyOnMentioned => new TranslatableString(getKey(@"notify_on_mentioned"), @"Show a notification when someone mentions your name");
+
+        /// <summary>
+        /// "Show a notification when you receive a private message"
+        /// </summary>
+        public static LocalisableString NotifyOnPrivateMessage => new TranslatableString(getKey(@"notify_on_private_message"), @"Show a notification when you receive a private message");
+
+        /// <summary>
+        /// "Integrations"
+        /// </summary>
+        public static LocalisableString IntegrationsHeader => new TranslatableString(getKey(@"integrations_header"), @"Integrations");
+
+        /// <summary>
+        /// "Discord Rich Presence"
+        /// </summary>
+        public static LocalisableString DiscordRichPresence => new TranslatableString(getKey(@"discord_rich_presence"), @"Discord Rich Presence");
+
+        /// <summary>
+        /// "Web"
+        /// </summary>
+        public static LocalisableString WebHeader => new TranslatableString(getKey(@"web_header"), @"Web");
+
+        /// <summary>
+        /// "Warn about opening external links"
+        /// </summary>
+        public static LocalisableString ExternalLinkWarning => new TranslatableString(getKey(@"external_link_warning"), @"Warn about opening external links");
+
+        /// <summary>
+        /// "Prefer downloads without video"
+        /// </summary>
+        public static LocalisableString PreferNoVideo => new TranslatableString(getKey(@"prefer_no_video"), @"Prefer downloads without video");
+
+        /// <summary>
+        /// "Automatically download beatmaps when spectating"
+        /// </summary>
+        public static LocalisableString AutomaticallyDownloadWhenSpectating => new TranslatableString(getKey(@"automatically_download_when_spectating"), @"Automatically download beatmaps when spectating");
+
+        /// <summary>
+        /// "Show explicit content in search results"
+        /// </summary>
+        public static LocalisableString ShowExplicitContent => new TranslatableString(getKey(@"show_explicit_content"), @"Show explicit content in search results");
+
+        private static string getKey(string key) => $"{prefix}:{key}";
+    }
+}

osu.Game/Localisation/SkinSettingsStrings.cs

@@ -0,0 +1,54 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using osu.Framework.Localisation;
+
+namespace osu.Game.Localisation
+{
+    public static class SkinSettingsStrings
+    {
+        private const string prefix = @"osu.Game.Resources.Localisation.SkinSettings";
+
+        /// <summary>
+        /// "Skin"
+        /// </summary>
+        public static LocalisableString SkinSectionHeader => new TranslatableString(getKey(@"skin_section_header"), @"Skin");
+
+        /// <summary>
+        /// "Skin layout editor"
+        /// </summary>
+        public static LocalisableString SkinLayoutEditor => new TranslatableString(getKey(@"skin_layout_editor"), @"Skin layout editor");
+
+        /// <summary>
+        /// "Gameplay cursor size"
+        /// </summary>
+        public static LocalisableString GameplayCursorSize => new TranslatableString(getKey(@"gameplay_cursor_size"), @"Gameplay cursor size");
+
+        /// <summary>
+        /// "Adjust gameplay cursor size based on current beatmap"
+        /// </summary>
+        public static LocalisableString AutoCursorSize => new TranslatableString(getKey(@"auto_cursor_size"), @"Adjust gameplay cursor size based on current beatmap");
+
+        /// <summary>
+        /// "Beatmap skins"
+        /// </summary>
+        public static LocalisableString BeatmapSkins => new TranslatableString(getKey(@"beatmap_skins"), @"Beatmap skins");
+
+        /// <summary>
+        /// "Beatmap colours"
+        /// </summary>
+        public static LocalisableString BeatmapColours => new TranslatableString(getKey(@"beatmap_colours"), @"Beatmap colours");
+
+        /// <summary>
+        /// "Beatmap hitsounds"
+        /// </summary>
+        public static LocalisableString BeatmapHitsounds => new TranslatableString(getKey(@"beatmap_hitsounds"), @"Beatmap hitsounds");
+
+        /// <summary>
+        /// "Export selected skin"
+        /// </summary>
+        public static LocalisableString ExportSkinButton => new TranslatableString(getKey(@"export_skin_button"), @"Export selected skin");
+
+        private static string getKey(string key) => $"{prefix}:{key}";
+    }
+}

osu.Game/Localisation/UserInterfaceStrings.cs

@@ -0,0 +1,114 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using osu.Framework.Localisation;
+
+namespace osu.Game.Localisation
+{
+    public static class UserInterfaceStrings
+    {
+        private const string prefix = @"osu.Game.Resources.Localisation.UserInterface";
+
+        /// <summary>
+        /// "User Interface"
+        /// </summary>
+        public static LocalisableString UserInterfaceSectionHeader => new TranslatableString(getKey(@"user_interface_section_header"), @"User Interface");
+
+        /// <summary>
+        /// "General"
+        /// </summary>
+        public static LocalisableString GeneralHeader => new TranslatableString(getKey(@"general_header"), @"General");
+
+        /// <summary>
+        /// "Rotate cursor when dragging"
+        /// </summary>
+        public static LocalisableString CursorRotation => new TranslatableString(getKey(@"cursor_rotation"), @"Rotate cursor when dragging");
+
+        /// <summary>
+        /// "Menu cursor size"
+        /// </summary>
+        public static LocalisableString MenuCursorSize => new TranslatableString(getKey(@"menu_cursor_size"), @"Menu cursor size");
+
+        /// <summary>
+        /// "Parallax"
+        /// </summary>
+        public static LocalisableString Parallax => new TranslatableString(getKey(@"parallax"), @"Parallax");
+
+        /// <summary>
+        /// "Hold-to-confirm activation time"
+        /// </summary>
+        public static LocalisableString HoldToConfirmActivationTime => new TranslatableString(getKey(@"hold_to_confirm_activation_time"), @"Hold-to-confirm activation time");
+
+        /// <summary>
+        /// "Main Menu"
+        /// </summary>
+        public static LocalisableString MainMenuHeader => new TranslatableString(getKey(@"main_menu_header"), @"Main Menu");
+
+        /// <summary>
+        /// "Interface voices"
+        /// </summary>
+        public static LocalisableString InterfaceVoices => new TranslatableString(getKey(@"interface_voices"), @"Interface voices");
+
+        /// <summary>
+        /// "osu! music theme"
+        /// </summary>
+        public static LocalisableString OsuMusicTheme => new TranslatableString(getKey(@"osu_music_theme"), @"osu! music theme");
+
+        /// <summary>
+        /// "Intro sequence"
+        /// </summary>
+        public static LocalisableString IntroSequence => new TranslatableString(getKey(@"intro_sequence"), @"Intro sequence");
+
+        /// <summary>
+        /// "Background source"
+        /// </summary>
+        public static LocalisableString BackgroundSource => new TranslatableString(getKey(@"background_source"), @"Background source");
+
+        /// <summary>
+        /// "Seasonal backgrounds"
+        /// </summary>
+        public static LocalisableString SeasonalBackgrounds => new TranslatableString(getKey(@"seasonal_backgrounds"), @"Seasonal backgrounds");
+
+        /// <summary>
+        /// "Changes to this setting will only apply with an active osu!supporter tag."
+        /// </summary>
+        public static LocalisableString NotSupporterNote => new TranslatableString(getKey(@"not_supporter_note"), @"Changes to this setting will only apply with an active osu!supporter tag.");
+
+        /// <summary>
+        /// "Song Select"
+        /// </summary>
+        public static LocalisableString SongSelectHeader => new TranslatableString(getKey(@"song_select_header"), @"Song Select");
+
+        /// <summary>
+        /// "Right mouse drag to absolute scroll"
+        /// </summary>
+        public static LocalisableString RightMouseScroll => new TranslatableString(getKey(@"right_mouse_scroll"), @"Right mouse drag to absolute scroll");
+
+        /// <summary>
+        /// "Show converted beatmaps"
+        /// </summary>
+        public static LocalisableString ShowConvertedBeatmaps => new TranslatableString(getKey(@"show_converted_beatmaps"), @"Show converted beatmaps");
+
+        /// <summary>
+        /// "Display beatmaps from"
+        /// </summary>
+        public static LocalisableString StarsMinimum => new TranslatableString(getKey(@"stars_minimum"), @"Display beatmaps from");
+
+        /// <summary>
+        /// "up to"
+        /// </summary>
+        public static LocalisableString StarsMaximum => new TranslatableString(getKey(@"stars_maximum"), @"up to");
+
+        /// <summary>
+        /// "Random selection algorithm"
+        /// </summary>
+        public static LocalisableString RandomSelectionAlgorithm => new TranslatableString(getKey(@"random_selection_algorithm"), @"Random selection algorithm");
+
+        /// <summary>
+        /// "no limit"
+        /// </summary>
+        public static LocalisableString NoLimit => new TranslatableString(getKey(@"no_limit"), @"no limit");
+
+        private static string getKey(string key) => $"{prefix}:{key}";
+    }
+}

osu.Game/Online/API/Requests/MarkChannelAsReadRequest.cs

@@ -9,16 +9,16 @@ namespace osu.Game.Online.API.Requests
 {
     public class MarkChannelAsReadRequest : APIRequest
     {
-        private readonly Channel channel;
-        private readonly Message message;
+        public readonly Channel Channel;
+        public readonly Message Message;
 
         public MarkChannelAsReadRequest(Channel channel, Message message)
         {
-            this.channel = channel;
-            this.message = message;
+            Channel = channel;
+            Message = message;
         }
 
-        protected override string Target => $"chat/channels/{channel.Id}/mark-as-read/{message.Id}";
+        protected override string Target => $"chat/channels/{Channel.Id}/mark-as-read/{Message.Id}";
 
         protected override WebRequest CreateWebRequest()
         {

osu.Game/Online/Chat/ChannelManager.cs

@@ -553,7 +553,7 @@ namespace osu.Game.Online.Chat
             if (channel.LastMessageId == channel.LastReadId)
                 return;
 
-            var message = channel.Messages.LastOrDefault();
+            var message = channel.Messages.FindLast(msg => !(msg is LocalMessage));
 
             if (message == null)
                 return;

osu.Game/Overlays/BeatmapListing/Panels/PlayButton.cs

@@ -139,19 +139,24 @@ namespace osu.Game.Overlays.BeatmapListing.Panels
 
                 LoadComponentAsync(Preview = previewTrackManager.Get(beatmapSet), preview =>
                 {
-                    // beatmapset may have changed.
-                    if (Preview != preview)
-                        return;
+                    // Make sure that we schedule to after the next audio frame to fix crashes in single-threaded execution.
+                    // See: https://github.com/ppy/osu-framework/issues/4692
+                    Schedule(() =>
+                    {
+                        // beatmapset may have changed.
+                        if (Preview != preview)
+                            return;
 
-                    AddInternal(preview);
-                    loading = false;
-                    // make sure that the update of value of Playing (and the ensuing value change callbacks)
-                    // are marshaled back to the update thread.
-                    preview.Stopped += () => Schedule(() => playing.Value = false);
+                        AddInternal(preview);
+                        loading = false;
+                        // make sure that the update of value of Playing (and the ensuing value change callbacks)
+                        // are marshaled back to the update thread.
+                        preview.Stopped += () => Schedule(() => playing.Value = false);
 
-                    // user may have changed their mind.
-                    if (playing.Value)
-                        attemptStart();
+                        // user may have changed their mind.
+                        if (playing.Value)
+                            attemptStart();
+                    });
                 });
             }
             else

osu.Game/Overlays/Changelog/ChangelogSupporterPromo.cs

@@ -24,6 +24,7 @@ namespace osu.Game.Overlays.Changelog
     public class ChangelogSupporterPromo : CompositeDrawable
     {
         private const float image_container_width = 164;
+        private const float heart_size = 75;
 
         private readonly FillFlowContainer textContainer;
         private readonly Container imageContainer;
@@ -134,18 +135,30 @@ namespace osu.Game.Overlays.Changelog
                 {
                     Anchor = Anchor.Centre,
                     Origin = Anchor.Centre,
+                    Margin = new MarginPadding { Bottom = 28 },
                     RelativeSizeAxes = Axes.Both,
                     FillMode = FillMode.Fill,
                     Texture = textures.Get(@"Online/supporter-pippi"),
                 },
-                new Sprite
+                new Container
                 {
                     Anchor = Anchor.TopCentre,
                     Origin = Anchor.TopCentre,
-                    Width = 75,
-                    Height = 75,
+                    Size = new Vector2(heart_size),
                     Margin = new MarginPadding { Top = 70 },
-                    Texture = textures.Get(@"Online/supporter-heart"),
+                    Masking = true,
+                    EdgeEffect = new EdgeEffectParameters
+                    {
+                        Type = EdgeEffectType.Shadow,
+                        Colour = colour.Pink,
+                        Radius = 10,
+                        Roundness = heart_size / 2,
+                    },
+                    Child = new Sprite
+                    {
+                        Size = new Vector2(heart_size),
+                        Texture = textures.Get(@"Online/supporter-heart"),
+                    },
                 },
             };
         }

osu.Game/Overlays/Settings/Sections/Audio/AudioDevicesSettings.cs

@@ -8,12 +8,13 @@ using System.Collections.Generic;
 using System.Linq;
 using osu.Framework.Localisation;
 using osu.Game.Graphics.UserInterface;
+using osu.Game.Localisation;
 
 namespace osu.Game.Overlays.Settings.Sections.Audio
 {
     public class AudioDevicesSettings : SettingsSubsection
     {
-        protected override LocalisableString Header => "Devices";
+        protected override LocalisableString Header => AudioSettingsStrings.AudioDevicesHeader;
 
         [Resolved]
         private AudioManager audio { get; set; }
@@ -78,7 +79,7 @@ namespace osu.Game.Overlays.Settings.Sections.Audio
             private class AudioDeviceDropdownControl : DropdownControl
             {
                 protected override LocalisableString GenerateItemText(string item)
-                    => string.IsNullOrEmpty(item) ? "Default" : base.GenerateItemText(item);
+                    => string.IsNullOrEmpty(item) ? CommonStrings.Default : base.GenerateItemText(item);
             }
         }
     }

osu.Game/Overlays/Settings/Sections/Audio/OffsetSettings.cs

@@ -1,17 +1,22 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
+using System.Collections.Generic;
+using System.Linq;
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Localisation;
 using osu.Game.Configuration;
 using osu.Game.Graphics.UserInterface;
+using osu.Game.Localisation;
 
 namespace osu.Game.Overlays.Settings.Sections.Audio
 {
     public class OffsetSettings : SettingsSubsection
     {
-        protected override LocalisableString Header => "Offset Adjustment";
+        protected override LocalisableString Header => AudioSettingsStrings.OffsetHeader;
+
+        public override IEnumerable<string> FilterTerms => base.FilterTerms.Concat(new[] { "universal", "uo", "timing" });
 
         [BackgroundDependencyLoader]
         private void load(OsuConfigManager config)
@@ -20,13 +25,13 @@ namespace osu.Game.Overlays.Settings.Sections.Audio
             {
                 new SettingsSlider<double, OffsetSlider>
                 {
-                    LabelText = "Audio offset",
+                    LabelText = AudioSettingsStrings.AudioOffset,
                     Current = config.GetBindable<double>(OsuSetting.AudioOffset),
                     KeyboardStep = 1f
                 },
                 new SettingsButton
                 {
-                    Text = "Offset wizard"
+                    Text = AudioSettingsStrings.OffsetWizard
                 }
             };
         }

osu.Game/Overlays/Settings/Sections/Audio/VolumeSettings.cs

@@ -6,12 +6,13 @@ using osu.Framework.Audio;
 using osu.Framework.Graphics;
 using osu.Framework.Localisation;
 using osu.Game.Configuration;
+using osu.Game.Localisation;
 
 namespace osu.Game.Overlays.Settings.Sections.Audio
 {
     public class VolumeSettings : SettingsSubsection
     {
-        protected override LocalisableString Header => "Volume";
+        protected override LocalisableString Header => AudioSettingsStrings.VolumeHeader;
 
         [BackgroundDependencyLoader]
         private void load(AudioManager audio, OsuConfigManager config)
@@ -20,28 +21,28 @@ namespace osu.Game.Overlays.Settings.Sections.Audio
             {
                 new SettingsSlider<double>
                 {
-                    LabelText = "Master",
+                    LabelText = AudioSettingsStrings.MasterVolume,
                     Current = audio.Volume,
                     KeyboardStep = 0.01f,
                     DisplayAsPercentage = true
                 },
                 new SettingsSlider<double>
                 {
-                    LabelText = "Master (window inactive)",
+                    LabelText = AudioSettingsStrings.MasterVolumeInactive,
                     Current = config.GetBindable<double>(OsuSetting.VolumeInactive),
                     KeyboardStep = 0.01f,
                     DisplayAsPercentage = true
                 },
                 new SettingsSlider<double>
                 {
-                    LabelText = "Effect",
+                    LabelText = AudioSettingsStrings.EffectVolume,
                     Current = audio.VolumeSample,
                     KeyboardStep = 0.01f,
                     DisplayAsPercentage = true
                 },
                 new SettingsSlider<double>
                 {
-                    LabelText = "Music",
+                    LabelText = AudioSettingsStrings.MusicVolume,
                     Current = audio.VolumeTrack,
                     KeyboardStep = 0.01f,
                     DisplayAsPercentage = true

osu.Game/Overlays/Settings/Sections/AudioSection.cs

@@ -3,15 +3,17 @@
 
 using System.Collections.Generic;
 using System.Linq;
+using osu.Framework.Localisation;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Sprites;
+using osu.Game.Localisation;
 using osu.Game.Overlays.Settings.Sections.Audio;
 
 namespace osu.Game.Overlays.Settings.Sections
 {
     public class AudioSection : SettingsSection
     {
-        public override string Header => "Audio";
+        public override LocalisableString Header => AudioSettingsStrings.AudioSectionHeader;
 
         public override Drawable CreateIcon() => new SpriteIcon
         {

osu.Game/Overlays/Settings/Sections/Debug/GeneralSettings.cs

@@ -6,13 +6,14 @@ using osu.Framework.Configuration;
 using osu.Framework.Graphics;
 using osu.Framework.Localisation;
 using osu.Framework.Screens;
+using osu.Game.Localisation;
 using osu.Game.Screens.Import;
 
 namespace osu.Game.Overlays.Settings.Sections.Debug
 {
     public class GeneralSettings : SettingsSubsection
     {
-        protected override LocalisableString Header => "General";
+        protected override LocalisableString Header => DebugSettingsStrings.GeneralHeader;
 
         [BackgroundDependencyLoader(true)]
         private void load(FrameworkDebugConfigManager config, FrameworkConfigManager frameworkConfig, OsuGame game)
@@ -21,18 +22,18 @@ namespace osu.Game.Overlays.Settings.Sections.Debug
             {
                 new SettingsCheckbox
                 {
-                    LabelText = "Show log overlay",
+                    LabelText = DebugSettingsStrings.ShowLogOverlay,
                     Current = frameworkConfig.GetBindable<bool>(FrameworkSetting.ShowLogOverlay)
                 },
                 new SettingsCheckbox
                 {
-                    LabelText = "Bypass front-to-back render pass",
+                    LabelText = DebugSettingsStrings.BypassFrontToBackPass,
                     Current = config.GetBindable<bool>(DebugSetting.BypassFrontToBackPass)
                 }
             };
             Add(new SettingsButton
             {
-                Text = "Import files",
+                Text = DebugSettingsStrings.ImportFiles,
                 Action = () => game?.PerformFromScreen(menu => menu.Push(new FileImportScreen()))
             });
         }

osu.Game/Overlays/Settings/Sections/Debug/MemorySettings.cs

@@ -6,12 +6,13 @@ using osu.Framework.Configuration;
 using osu.Framework.Graphics;
 using osu.Framework.Localisation;
 using osu.Framework.Platform;
+using osu.Game.Localisation;
 
 namespace osu.Game.Overlays.Settings.Sections.Debug
 {
     public class MemorySettings : SettingsSubsection
     {
-        protected override LocalisableString Header => "Memory";
+        protected override LocalisableString Header => DebugSettingsStrings.MemoryHeader;
 
         [BackgroundDependencyLoader]
         private void load(FrameworkDebugConfigManager config, GameHost host)
@@ -20,7 +21,7 @@ namespace osu.Game.Overlays.Settings.Sections.Debug
             {
                 new SettingsButton
                 {
-                    Text = "Clear all caches",
+                    Text = DebugSettingsStrings.ClearAllCaches,
                     Action = host.Collect
                 },
             };

osu.Game/Overlays/Settings/Sections/DebugSection.cs

@@ -3,13 +3,15 @@
 
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Sprites;
+using osu.Framework.Localisation;
+using osu.Game.Localisation;
 using osu.Game.Overlays.Settings.Sections.Debug;
 
 namespace osu.Game.Overlays.Settings.Sections
 {
     public class DebugSection : SettingsSection
     {
-        public override string Header => "Debug";
+        public override LocalisableString Header => DebugSettingsStrings.DebugSectionHeader;
 
         public override Drawable CreateIcon() => new SpriteIcon
         {

osu.Game/Overlays/Settings/Sections/Gameplay/GeneralSettings.cs

@@ -6,13 +6,14 @@ using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Localisation;
 using osu.Game.Configuration;
+using osu.Game.Localisation;
 using osu.Game.Rulesets.Scoring;
 
 namespace osu.Game.Overlays.Settings.Sections.Gameplay
 {
     public class GeneralSettings : SettingsSubsection
     {
-        protected override LocalisableString Header => "General";
+        protected override LocalisableString Header => GameplaySettingsStrings.GeneralHeader;
 
         [BackgroundDependencyLoader]
         private void load(OsuConfigManager config)
@@ -21,62 +22,62 @@ namespace osu.Game.Overlays.Settings.Sections.Gameplay
             {
                 new SettingsSlider<double>
                 {
-                    LabelText = "Background dim",
+                    LabelText = GameplaySettingsStrings.BackgroundDim,
                     Current = config.GetBindable<double>(OsuSetting.DimLevel),
                     KeyboardStep = 0.01f,
                     DisplayAsPercentage = true
                 },
                 new SettingsSlider<double>
                 {
-                    LabelText = "Background blur",
+                    LabelText = GameplaySettingsStrings.BackgroundBlur,
                     Current = config.GetBindable<double>(OsuSetting.BlurLevel),
                     KeyboardStep = 0.01f,
                     DisplayAsPercentage = true
                 },
                 new SettingsCheckbox
                 {
-                    LabelText = "Lighten playfield during breaks",
+                    LabelText = GameplaySettingsStrings.LightenDuringBreaks,
                     Current = config.GetBindable<bool>(OsuSetting.LightenDuringBreaks)
                 },
                 new SettingsEnumDropdown<HUDVisibilityMode>
                 {
-                    LabelText = "HUD overlay visibility mode",
+                    LabelText = GameplaySettingsStrings.HUDVisibilityMode,
                     Current = config.GetBindable<HUDVisibilityMode>(OsuSetting.HUDVisibilityMode)
                 },
                 new SettingsCheckbox
                 {
-                    LabelText = "Show difficulty graph on progress bar",
-                    Current = config.GetBindable<bool>(OsuSetting.ShowDifficultyGraph)
+                    LabelText = GameplaySettingsStrings.ShowDifficultyGraph,
+                    Current = config.GetBindable<bool>(OsuSetting.ShowProgressGraph)
                 },
                 new SettingsCheckbox
                 {
-                    LabelText = "Show health display even when you can't fail",
+                    LabelText = GameplaySettingsStrings.ShowHealthDisplayWhenCantFail,
                     Current = config.GetBindable<bool>(OsuSetting.ShowHealthDisplayWhenCantFail),
                     Keywords = new[] { "hp", "bar" }
                 },
                 new SettingsCheckbox
                 {
-                    LabelText = "Fade playfield to red when health is low",
+                    LabelText = GameplaySettingsStrings.FadePlayfieldWhenHealthLow,
                     Current = config.GetBindable<bool>(OsuSetting.FadePlayfieldWhenHealthLow),
                 },
                 new SettingsCheckbox
                 {
-                    LabelText = "Always show key overlay",
+                    LabelText = GameplaySettingsStrings.AlwaysShowKeyOverlay,
                     Current = config.GetBindable<bool>(OsuSetting.KeyOverlay)
                 },
                 new SettingsCheckbox
                 {
-                    LabelText = "Positional hitsounds",
+                    LabelText = GameplaySettingsStrings.PositionalHitsounds,
                     Current = config.GetBindable<bool>(OsuSetting.PositionalHitSounds)
                 },
                 new SettingsCheckbox
                 {
-                    LabelText = "Always play first combo break sound",
+                    LabelText = GameplaySettingsStrings.AlwaysPlayFirstComboBreak,
                     Current = config.GetBindable<bool>(OsuSetting.AlwaysPlayFirstComboBreak)
                 },
                 new SettingsEnumDropdown<ScoringMode>
                 {
-                    LabelText = "Score display mode",
+                    LabelText = GameplaySettingsStrings.ScoreDisplayMode,
                     Current = config.GetBindable<ScoringMode>(OsuSetting.ScoreDisplayMode),
                     Keywords = new[] { "scoring" }
                 },
@@ -86,7 +87,7 @@ namespace osu.Game.Overlays.Settings.Sections.Gameplay
             {
                 Add(new SettingsCheckbox
                 {
-                    LabelText = "Disable Windows key during gameplay",
+                    LabelText = GameplaySettingsStrings.DisableWinKey,
                     Current = config.GetBindable<bool>(OsuSetting.GameplayDisableWinKey)
                 });
             }

osu.Game/Overlays/Settings/Sections/Gameplay/ModsSettings.cs

@@ -6,12 +6,13 @@ using System.Linq;
 using osu.Framework.Allocation;
 using osu.Framework.Localisation;
 using osu.Game.Configuration;
+using osu.Game.Localisation;
 
 namespace osu.Game.Overlays.Settings.Sections.Gameplay
 {
     public class ModsSettings : SettingsSubsection
     {
-        protected override LocalisableString Header => "Mods";
+        protected override LocalisableString Header => GameplaySettingsStrings.ModsHeader;
 
         public override IEnumerable<string> FilterTerms => base.FilterTerms.Concat(new[] { "mod" });
 
@@ -22,7 +23,7 @@ namespace osu.Game.Overlays.Settings.Sections.Gameplay
             {
                 new SettingsCheckbox
                 {
-                    LabelText = "Increase visibility of first object when visual impairment mods are enabled",
+                    LabelText = GameplaySettingsStrings.IncreaseFirstObjectVisibility,
                     Current = config.GetBindable<bool>(OsuSetting.IncreaseFirstObjectVisibility),
                 },
             };

osu.Game/Overlays/Settings/Sections/GameplaySection.cs

@@ -9,12 +9,14 @@ using osu.Game.Rulesets;
 using System.Linq;
 using osu.Framework.Graphics.Sprites;
 using osu.Framework.Logging;
+using osu.Framework.Localisation;
+using osu.Game.Localisation;
 
 namespace osu.Game.Overlays.Settings.Sections
 {
     public class GameplaySection : SettingsSection
     {
-        public override string Header => "Gameplay";
+        public override LocalisableString Header => GameplaySettingsStrings.GameplaySectionHeader;
 
         public override Drawable CreateIcon() => new SpriteIcon
         {

osu.Game/Overlays/Settings/Sections/General/LanguageSettings.cs

@@ -16,7 +16,7 @@ namespace osu.Game.Overlays.Settings.Sections.General
         private SettingsDropdown<Language> languageSelection;
         private Bindable<string> frameworkLocale;
 
-        protected override LocalisableString Header => "Language";
+        protected override LocalisableString Header => GeneralSettingsStrings.LanguageHeader;
 
         [BackgroundDependencyLoader]
         private void load(FrameworkConfigManager frameworkConfig)
@@ -27,11 +27,11 @@ namespace osu.Game.Overlays.Settings.Sections.General
             {
                 languageSelection = new SettingsEnumDropdown<Language>
                 {
-                    LabelText = "Language",
+                    LabelText = GeneralSettingsStrings.LanguageDropdown,
                 },
                 new SettingsCheckbox
                 {
-                    LabelText = "Prefer metadata in original language",
+                    LabelText = GeneralSettingsStrings.PreferOriginalMetadataLanguage,
                     Current = frameworkConfig.GetBindable<bool>(FrameworkSetting.ShowUnicode)
                 },
             };

osu.Game/Overlays/Settings/Sections/General/UpdateSettings.cs

@@ -9,6 +9,7 @@ using osu.Framework.Localisation;
 using osu.Framework.Platform;
 using osu.Framework.Screens;
 using osu.Game.Configuration;
+using osu.Game.Localisation;
 using osu.Game.Overlays.Notifications;
 using osu.Game.Overlays.Settings.Sections.Maintenance;
 using osu.Game.Updater;
@@ -20,7 +21,7 @@ namespace osu.Game.Overlays.Settings.Sections.General
         [Resolved(CanBeNull = true)]
         private UpdateManager updateManager { get; set; }
 
-        protected override LocalisableString Header => "Updates";
+        protected override LocalisableString Header => GeneralSettingsStrings.UpdateHeader;
 
         private SettingsButton checkForUpdatesButton;
 
@@ -32,7 +33,7 @@ namespace osu.Game.Overlays.Settings.Sections.General
         {
             Add(new SettingsEnumDropdown<ReleaseStream>
             {
-                LabelText = "Release stream",
+                LabelText = GeneralSettingsStrings.ReleaseStream,
                 Current = config.GetBindable<ReleaseStream>(OsuSetting.ReleaseStream),
             });
 
@@ -40,7 +41,7 @@ namespace osu.Game.Overlays.Settings.Sections.General
             {
                 Add(checkForUpdatesButton = new SettingsButton
                 {
-                    Text = "Check for updates",
+                    Text = GeneralSettingsStrings.CheckUpdate,
                     Action = () =>
                     {
                         checkForUpdatesButton.Enabled.Value = false;
@@ -65,13 +66,13 @@ namespace osu.Game.Overlays.Settings.Sections.General
             {
                 Add(new SettingsButton
                 {
-                    Text = "Open osu! folder",
+                    Text = GeneralSettingsStrings.OpenOsuFolder,
                     Action = storage.OpenInNativeExplorer,
                 });
 
                 Add(new SettingsButton
                 {
-                    Text = "Change folder location...",
+                    Text = GeneralSettingsStrings.ChangeFolderLocation,
                     Action = () => game?.PerformFromScreen(menu => menu.Push(new MigrationSelectScreen()))
                 });
             }

osu.Game/Overlays/Settings/Sections/GeneralSection.cs

@@ -3,13 +3,15 @@
 
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Sprites;
+using osu.Framework.Localisation;
+using osu.Game.Localisation;
 using osu.Game.Overlays.Settings.Sections.General;
 
 namespace osu.Game.Overlays.Settings.Sections
 {
     public class GeneralSection : SettingsSection
     {
-        public override string Header => "General";
+        public override LocalisableString Header => GeneralSettingsStrings.GeneralSectionHeader;
 
         public override Drawable CreateIcon() => new SpriteIcon
         {

osu.Game/Overlays/Settings/Sections/Graphics/DetailSettings.cs

@@ -5,12 +5,13 @@ using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Localisation;
 using osu.Game.Configuration;
+using osu.Game.Localisation;
 
 namespace osu.Game.Overlays.Settings.Sections.Graphics
 {
     public class DetailSettings : SettingsSubsection
     {
-        protected override LocalisableString Header => "Detail Settings";
+        protected override LocalisableString Header => GraphicsSettingsStrings.DetailSettingsHeader;
 
         [BackgroundDependencyLoader]
         private void load(OsuConfigManager config)
@@ -19,22 +20,22 @@ namespace osu.Game.Overlays.Settings.Sections.Graphics
             {
                 new SettingsCheckbox
                 {
-                    LabelText = "Storyboard / Video",
+                    LabelText = GraphicsSettingsStrings.StoryboardVideo,
                     Current = config.GetBindable<bool>(OsuSetting.ShowStoryboard)
                 },
                 new SettingsCheckbox
                 {
-                    LabelText = "Hit Lighting",
+                    LabelText = GraphicsSettingsStrings.HitLighting,
                     Current = config.GetBindable<bool>(OsuSetting.HitLighting)
                 },
                 new SettingsEnumDropdown<ScreenshotFormat>
                 {
-                    LabelText = "Screenshot format",
+                    LabelText = GraphicsSettingsStrings.ScreenshotFormat,
                     Current = config.GetBindable<ScreenshotFormat>(OsuSetting.ScreenshotFormat)
                 },
                 new SettingsCheckbox
                 {
-                    LabelText = "Show menu cursor in screenshots",
+                    LabelText = GraphicsSettingsStrings.ShowCursorInScreenshots,
                     Current = config.GetBindable<bool>(OsuSetting.ScreenshotCaptureMenuCursor)
                 }
             };

osu.Game/Overlays/Settings/Sections/Graphics/LayoutSettings.cs

@@ -16,13 +16,14 @@ using osu.Framework.Platform;
 using osu.Game.Configuration;
 using osu.Game.Graphics.Containers;
 using osu.Game.Graphics.UserInterface;
+using osu.Game.Localisation;
 using osuTK.Graphics;
 
 namespace osu.Game.Overlays.Settings.Sections.Graphics
 {
     public class LayoutSettings : SettingsSubsection
     {
-        protected override LocalisableString Header => "Layout";
+        protected override LocalisableString Header => GraphicsSettingsStrings.LayoutHeader;
 
         private FillFlowContainer<SettingsSlider<float>> scalingSettings;
 
@@ -67,20 +68,20 @@ namespace osu.Game.Overlays.Settings.Sections.Graphics
             {
                 windowModeDropdown = new SettingsDropdown<WindowMode>
                 {
-                    LabelText = "Screen mode",
+                    LabelText = GraphicsSettingsStrings.ScreenMode,
                     ItemSource = windowModes,
                     Current = config.GetBindable<WindowMode>(FrameworkSetting.WindowMode),
                 },
                 resolutionDropdown = new ResolutionSettingsDropdown
                 {
-                    LabelText = "Resolution",
+                    LabelText = GraphicsSettingsStrings.Resolution,
                     ShowsDefaultIndicator = false,
                     ItemSource = resolutions,
                     Current = sizeFullscreen
                 },
                 new SettingsSlider<float, UIScaleSlider>
                 {
-                    LabelText = "UI Scaling",
+                    LabelText = GraphicsSettingsStrings.UIScaling,
                     TransferValueOnCommit = true,
                     Current = osuConfig.GetBindable<float>(OsuSetting.UIScale),
                     KeyboardStep = 0.01f,
@@ -88,7 +89,7 @@ namespace osu.Game.Overlays.Settings.Sections.Graphics
                 },
                 new SettingsEnumDropdown<ScalingMode>
                 {
-                    LabelText = "Screen Scaling",
+                    LabelText = GraphicsSettingsStrings.ScreenScaling,
                     Current = osuConfig.GetBindable<ScalingMode>(OsuSetting.Scaling),
                     Keywords = new[] { "scale", "letterbox" },
                 },
@@ -104,28 +105,28 @@ namespace osu.Game.Overlays.Settings.Sections.Graphics
                     {
                         new SettingsSlider<float>
                         {
-                            LabelText = "Horizontal position",
+                            LabelText = GraphicsSettingsStrings.HorizontalPosition,
                             Current = scalingPositionX,
                             KeyboardStep = 0.01f,
                             DisplayAsPercentage = true
                         },
                         new SettingsSlider<float>
                         {
-                            LabelText = "Vertical position",
+                            LabelText = GraphicsSettingsStrings.VerticalPosition,
                             Current = scalingPositionY,
                             KeyboardStep = 0.01f,
                             DisplayAsPercentage = true
                         },
                         new SettingsSlider<float>
                         {
-                            LabelText = "Horizontal scale",
+                            LabelText = GraphicsSettingsStrings.HorizontalScale,
                             Current = scalingSizeX,
                             KeyboardStep = 0.01f,
                             DisplayAsPercentage = true
                         },
                         new SettingsSlider<float>
                         {
-                            LabelText = "Vertical scale",
+                            LabelText = GraphicsSettingsStrings.VerticalScale,
                             Current = scalingSizeY,
                             KeyboardStep = 0.01f,
                             DisplayAsPercentage = true
@@ -145,9 +146,7 @@ namespace osu.Game.Overlays.Settings.Sections.Graphics
             {
                 updateResolutionDropdown();
 
-                const string not_fullscreen_note = "Running without fullscreen mode will increase your input latency!";
-
-                windowModeDropdown.WarningText = mode.NewValue != WindowMode.Fullscreen ? not_fullscreen_note : string.Empty;
+                windowModeDropdown.WarningText = mode.NewValue != WindowMode.Fullscreen ? GraphicsSettingsStrings.NotFullscreenNote : default;
             }, true);
 
             windowModes.BindCollectionChanged((sender, args) =>
@@ -245,7 +244,7 @@ namespace osu.Game.Overlays.Settings.Sections.Graphics
                 protected override LocalisableString GenerateItemText(Size item)
                 {
                     if (item == new Size(9999, 9999))
-                        return "Default";
+                        return CommonStrings.Default;
 
                     return $"{item.Width}x{item.Height}";
                 }

osu.Game/Overlays/Settings/Sections/Graphics/RendererSettings.cs

@@ -7,12 +7,13 @@ using osu.Framework.Graphics;
 using osu.Framework.Localisation;
 using osu.Framework.Platform;
 using osu.Game.Configuration;
+using osu.Game.Localisation;
 
 namespace osu.Game.Overlays.Settings.Sections.Graphics
 {
     public class RendererSettings : SettingsSubsection
     {
-        protected override LocalisableString Header => "Renderer";
+        protected override LocalisableString Header => GraphicsSettingsStrings.RendererHeader;
 
         private SettingsEnumDropdown<FrameSync> frameLimiterDropdown;
 
@@ -25,17 +26,17 @@ namespace osu.Game.Overlays.Settings.Sections.Graphics
                 // TODO: this needs to be a custom dropdown at some point
                 frameLimiterDropdown = new SettingsEnumDropdown<FrameSync>
                 {
-                    LabelText = "Frame limiter",
+                    LabelText = GraphicsSettingsStrings.FrameLimiter,
                     Current = config.GetBindable<FrameSync>(FrameworkSetting.FrameSync)
                 },
                 new SettingsEnumDropdown<ExecutionMode>
                 {
-                    LabelText = "Threading mode",
+                    LabelText = GraphicsSettingsStrings.ThreadingMode,
                     Current = config.GetBindable<ExecutionMode>(FrameworkSetting.ExecutionMode)
                 },
                 new SettingsCheckbox
                 {
-                    LabelText = "Show FPS",
+                    LabelText = GraphicsSettingsStrings.ShowFPS,
                     Current = osuConfig.GetBindable<bool>(OsuSetting.ShowFpsDisplay)
                 },
             };
@@ -47,9 +48,7 @@ namespace osu.Game.Overlays.Settings.Sections.Graphics
 
             frameLimiterDropdown.Current.BindValueChanged(limit =>
             {
-                const string unlimited_frames_note = "Using unlimited frame limiter can lead to stutters, bad performance and overheating. It will not improve perceived latency. \"2x refresh rate\" is recommended.";
-
-                frameLimiterDropdown.WarningText = limit.NewValue == FrameSync.Unlimited ? unlimited_frames_note : string.Empty;
+                frameLimiterDropdown.WarningText = limit.NewValue == FrameSync.Unlimited ? GraphicsSettingsStrings.UnlimitedFramesNote : default;
             }, true);
         }
     }

osu.Game/Overlays/Settings/Sections/GraphicsSection.cs

@@ -3,13 +3,15 @@
 
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Sprites;
+using osu.Framework.Localisation;
+using osu.Game.Localisation;
 using osu.Game.Overlays.Settings.Sections.Graphics;
 
 namespace osu.Game.Overlays.Settings.Sections
 {
     public class GraphicsSection : SettingsSection
     {
-        public override string Header => "Graphics";
+        public override LocalisableString Header => GraphicsSettingsStrings.GraphicsSectionHeader;
 
         public override Drawable CreateIcon() => new SpriteIcon
         {

osu.Game/Overlays/Settings/Sections/Input/GlobalKeyBindingsSection.cs

@@ -5,6 +5,7 @@ using osu.Framework.Graphics;
 using osu.Framework.Graphics.Sprites;
 using osu.Framework.Localisation;
 using osu.Game.Input.Bindings;
+using osu.Game.Localisation;
 
 namespace osu.Game.Overlays.Settings.Sections.Input
 {
@@ -15,7 +16,7 @@ namespace osu.Game.Overlays.Settings.Sections.Input
             Icon = FontAwesome.Solid.Globe
         };
 
-        public override string Header => "Global";
+        public override LocalisableString Header => InputSettingsStrings.GlobalKeyBindingHeader;
 
         public GlobalKeyBindingsSection(GlobalActionContainer manager)
         {
@@ -39,7 +40,7 @@ namespace osu.Game.Overlays.Settings.Sections.Input
 
         private class SongSelectKeyBindingSubsection : KeyBindingsSubsection
         {
-            protected override LocalisableString Header => "Song Select";
+            protected override LocalisableString Header => InputSettingsStrings.SongSelectSection;
 
             public SongSelectKeyBindingSubsection(GlobalActionContainer manager)
                 : base(null)
@@ -50,7 +51,7 @@ namespace osu.Game.Overlays.Settings.Sections.Input
 
         private class InGameKeyBindingsSubsection : KeyBindingsSubsection
         {
-            protected override LocalisableString Header => "In Game";
+            protected override LocalisableString Header => InputSettingsStrings.InGameSection;
 
             public InGameKeyBindingsSubsection(GlobalActionContainer manager)
                 : base(null)
@@ -61,7 +62,7 @@ namespace osu.Game.Overlays.Settings.Sections.Input
 
         private class AudioControlKeyBindingsSubsection : KeyBindingsSubsection
         {
-            protected override LocalisableString Header => "Audio";
+            protected override LocalisableString Header => InputSettingsStrings.AudioSection;
 
             public AudioControlKeyBindingsSubsection(GlobalActionContainer manager)
                 : base(null)
@@ -72,7 +73,7 @@ namespace osu.Game.Overlays.Settings.Sections.Input
 
         private class EditorKeyBindingsSubsection : KeyBindingsSubsection
         {
-            protected override LocalisableString Header => "Editor";
+            protected override LocalisableString Header => InputSettingsStrings.EditorSection;
 
             public EditorKeyBindingsSubsection(GlobalActionContainer manager)
                 : base(null)

osu.Game/Overlays/Settings/Sections/Input/KeyBindingPanel.cs

@@ -4,13 +4,14 @@
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Game.Input.Bindings;
+using osu.Game.Localisation;
 using osu.Game.Rulesets;
 
 namespace osu.Game.Overlays.Settings.Sections.Input
 {
     public class KeyBindingPanel : SettingsSubPanel
     {
-        protected override Drawable CreateHeader() => new SettingsHeader("key configuration", "Customise your keys!");
+        protected override Drawable CreateHeader() => new SettingsHeader(InputSettingsStrings.KeyBindingPanelHeader, InputSettingsStrings.KeyBindingPanelDescription);
 
         [BackgroundDependencyLoader(permitNulls: true)]
         private void load(RulesetStore rulesets, GlobalActionContainer global)

osu.Game/Overlays/Settings/Sections/Input/KeyBindingRow.cs

@@ -20,6 +20,7 @@ using osu.Game.Graphics.Sprites;
 using osu.Game.Graphics.UserInterface;
 using osu.Game.Input;
 using osu.Game.Input.Bindings;
+using osu.Game.Localisation;
 using osuTK;
 using osuTK.Graphics;
 using osuTK.Input;
@@ -385,7 +386,7 @@ namespace osu.Game.Overlays.Settings.Sections.Input
         {
             public CancelButton()
             {
-                Text = "Cancel";
+                Text = CommonStrings.Cancel;
                 Size = new Vector2(80, 20);
             }
         }
@@ -394,7 +395,7 @@ namespace osu.Game.Overlays.Settings.Sections.Input
         {
             public ClearButton()
             {
-                Text = "Clear";
+                Text = CommonStrings.Clear;
                 Size = new Vector2(80, 20);
             }
         }

osu.Game/Overlays/Settings/Sections/Input/KeyBindingsSubsection.cs

@@ -10,6 +10,7 @@ using osu.Game.Database;
 using osu.Game.Graphics.UserInterface;
 using osu.Game.Input.Bindings;
 using osu.Game.Rulesets;
+using osu.Game.Localisation;
 using osuTK;
 
 namespace osu.Game.Overlays.Settings.Sections.Input
@@ -64,7 +65,7 @@ namespace osu.Game.Overlays.Settings.Sections.Input
         [BackgroundDependencyLoader]
         private void load()
         {
-            Text = "Reset all bindings in section";
+            Text = InputSettingsStrings.ResetSectionButton;
             RelativeSizeAxes = Axes.X;
             Width = 0.5f;
             Anchor = Anchor.TopCentre;

osu.Game/Overlays/Settings/Sections/Input/RulesetBindingsSection.cs

@@ -3,6 +3,7 @@
 
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Sprites;
+using osu.Framework.Localisation;
 using osu.Game.Graphics;
 using osu.Game.Rulesets;
 
@@ -15,7 +16,7 @@ namespace osu.Game.Overlays.Settings.Sections.Input
             Icon = OsuIcon.Hot
         };
 
-        public override string Header => ruleset.Name;
+        public override LocalisableString Header => ruleset.Name;
 
         private readonly RulesetInfo ruleset;
 

osu.Game/Overlays/Settings/Sections/Input/TabletSettings.cs

@@ -1,6 +1,7 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
+using osu.Framework;
 using osu.Framework.Allocation;
 using osu.Framework.Bindables;
 using osu.Framework.Graphics;
@@ -9,9 +10,11 @@ using osu.Framework.Input.Handlers.Tablet;
 using osu.Framework.Localisation;
 using osu.Framework.Platform;
 using osu.Framework.Threading;
+using osu.Game.Graphics;
 using osu.Game.Graphics.Sprites;
 using osuTK;
 using osu.Game.Localisation;
+using osu.Game.Online.Chat;
 
 namespace osu.Game.Overlays.Settings.Sections.Input
 {
@@ -19,6 +22,8 @@ namespace osu.Game.Overlays.Settings.Sections.Input
     {
         private readonly ITabletHandler tabletHandler;
 
+        private readonly Bindable<bool> enabled = new BindableBool(true);
+
         private readonly Bindable<Vector2> areaOffset = new Bindable<Vector2>();
         private readonly Bindable<Vector2> areaSize = new Bindable<Vector2>();
         private readonly IBindable<TabletInfo> tablet = new Bindable<TabletInfo>();
@@ -52,7 +57,7 @@ namespace osu.Game.Overlays.Settings.Sections.Input
 
         private FillFlowContainer mainSettings;
 
-        private OsuSpriteText noTabletMessage;
+        private FillFlowContainer noTabletMessage;
 
         protected override LocalisableString Header => TabletSettingsStrings.Tablet;
 
@@ -62,7 +67,7 @@ namespace osu.Game.Overlays.Settings.Sections.Input
         }
 
         [BackgroundDependencyLoader]
-        private void load()
+        private void load(OsuColour colours)
         {
             Children = new Drawable[]
             {
@@ -71,14 +76,41 @@ namespace osu.Game.Overlays.Settings.Sections.Input
                     LabelText = CommonStrings.Enabled,
                     Anchor = Anchor.TopCentre,
                     Origin = Anchor.TopCentre,
-                    Current = tabletHandler.Enabled
+                    Current = enabled,
                 },
-                noTabletMessage = new OsuSpriteText
+                noTabletMessage = new FillFlowContainer
                 {
-                    Text = TabletSettingsStrings.NoTabletDetected,
-                    Anchor = Anchor.TopCentre,
-                    Origin = Anchor.TopCentre,
-                    Padding = new MarginPadding { Horizontal = SettingsPanel.CONTENT_MARGINS }
+                    RelativeSizeAxes = Axes.X,
+                    AutoSizeAxes = Axes.Y,
+                    Direction = FillDirection.Vertical,
+                    Padding = new MarginPadding { Horizontal = SettingsPanel.CONTENT_MARGINS },
+                    Spacing = new Vector2(5f),
+                    Children = new Drawable[]
+                    {
+                        new OsuSpriteText
+                        {
+                            Anchor = Anchor.TopCentre,
+                            Origin = Anchor.TopCentre,
+                            Text = TabletSettingsStrings.NoTabletDetected,
+                        },
+                        new SettingsNoticeText(colours)
+                        {
+                            TextAnchor = Anchor.TopCentre,
+                            Anchor = Anchor.TopCentre,
+                            Origin = Anchor.TopCentre,
+                        }.With(t =>
+                        {
+                            if (RuntimeInfo.OS == RuntimeInfo.Platform.Windows || RuntimeInfo.OS == RuntimeInfo.Platform.Linux)
+                            {
+                                t.NewLine();
+                                t.AddText("If your tablet is not detected, please read ");
+                                t.AddLink("this FAQ", LinkAction.External, RuntimeInfo.OS == RuntimeInfo.Platform.Windows
+                                    ? @"https://github.com/OpenTabletDriver/OpenTabletDriver/wiki/Windows-FAQ"
+                                    : @"https://github.com/OpenTabletDriver/OpenTabletDriver/wiki/Linux-FAQ");
+                                t.AddText(" for troubleshooting steps.");
+                            }
+                        }),
+                    }
                 },
                 mainSettings = new FillFlowContainer
                 {
@@ -164,6 +196,9 @@ namespace osu.Game.Overlays.Settings.Sections.Input
         {
             base.LoadComplete();
 
+            enabled.BindTo(tabletHandler.Enabled);
+            enabled.BindValueChanged(_ => Scheduler.AddOnce(updateVisibility));
+
             rotation.BindTo(tabletHandler.Rotation);
 
             areaOffset.BindTo(tabletHandler.AreaOffset);
@@ -209,7 +244,7 @@ namespace osu.Game.Overlays.Settings.Sections.Input
             tablet.BindTo(tabletHandler.Tablet);
             tablet.BindValueChanged(val =>
             {
-                Scheduler.AddOnce(toggleVisibility);
+                Scheduler.AddOnce(updateVisibility);
 
                 var tab = val.NewValue;
 
@@ -229,19 +264,18 @@ namespace osu.Game.Overlays.Settings.Sections.Input
             }, true);
         }
 
-        private void toggleVisibility()
+        private void updateVisibility()
         {
-            bool tabletFound = tablet.Value != null;
-
-            if (!tabletFound)
-            {
-                mainSettings.Hide();
-                noTabletMessage.Show();
-                return;
-            }
-
-            mainSettings.Show();
+            mainSettings.Hide();
             noTabletMessage.Hide();
+
+            if (!tabletHandler.Enabled.Value)
+                return;
+
+            if (tablet.Value != null)
+                mainSettings.Show();
+            else
+                noTabletMessage.Show();
         }
 
         private void applyAspectRatio(BindableNumber<float> sizeChanged)

osu.Game/Overlays/Settings/Sections/InputSection.cs

@@ -11,6 +11,7 @@ using osu.Framework.Input.Handlers.Mouse;
 using osu.Framework.Input.Handlers.Tablet;
 using osu.Framework.Localisation;
 using osu.Framework.Platform;
+using osu.Game.Localisation;
 using osu.Game.Overlays.Settings.Sections.Input;
 
 namespace osu.Game.Overlays.Settings.Sections
@@ -19,7 +20,7 @@ namespace osu.Game.Overlays.Settings.Sections
     {
         private readonly KeyBindingPanel keyConfig;
 
-        public override string Header => "Input";
+        public override LocalisableString Header => InputSettingsStrings.InputSectionHeader;
 
         [Resolved]
         private GameHost host { get; set; }
@@ -95,7 +96,7 @@ namespace osu.Game.Overlays.Settings.Sections
                 {
                     new SettingsCheckbox
                     {
-                        LabelText = "Enabled",
+                        LabelText = CommonStrings.Enabled,
                         Current = handler.Enabled
                     },
                 };

osu.Game/Overlays/Settings/Sections/Maintenance/DirectorySelectScreen.cs

@@ -14,6 +14,7 @@ using osu.Framework.Localisation;
 using osu.Game.Graphics.UserInterface;
 using osu.Framework.Screens;
 using osu.Game.Graphics.Containers;
+using osu.Game.Localisation;
 
 namespace osu.Game.Overlays.Settings.Sections.Maintenance
 {
@@ -104,7 +105,7 @@ namespace osu.Game.Overlays.Settings.Sections.Maintenance
                                     Origin = Anchor.Centre,
                                     Width = 300,
                                     Margin = new MarginPadding(10),
-                                    Text = "Select directory",
+                                    Text = MaintenanceSettingsStrings.SelectDirectory,
                                     Action = () => OnSelection(directorySelector.CurrentPath.Value)
                                 },
                             }

osu.Game/Overlays/Settings/Sections/Maintenance/GeneralSettings.cs

@@ -11,6 +11,7 @@ using osu.Game.Beatmaps;
 using osu.Game.Collections;
 using osu.Game.Database;
 using osu.Game.Graphics.UserInterface;
+using osu.Game.Localisation;
 using osu.Game.Scoring;
 using osu.Game.Skinning;
 
@@ -37,7 +38,7 @@ namespace osu.Game.Overlays.Settings.Sections.Maintenance
             {
                 Add(importBeatmapsButton = new SettingsButton
                 {
-                    Text = "Import beatmaps from stable",
+                    Text = MaintenanceSettingsStrings.ImportBeatmapsFromStable,
                     Action = () =>
                     {
                         importBeatmapsButton.Enabled.Value = false;
@@ -48,7 +49,7 @@ namespace osu.Game.Overlays.Settings.Sections.Maintenance
 
             Add(deleteBeatmapsButton = new DangerousSettingsButton
             {
-                Text = "Delete ALL beatmaps",
+                Text = MaintenanceSettingsStrings.DeleteAllBeatmaps,
                 Action = () =>
                 {
                     dialogOverlay?.Push(new DeleteAllBeatmapsDialog(() =>
@@ -63,7 +64,7 @@ namespace osu.Game.Overlays.Settings.Sections.Maintenance
             {
                 Add(importScoresButton = new SettingsButton
                 {
-                    Text = "Import scores from stable",
+                    Text = MaintenanceSettingsStrings.ImportScoresFromStable,
                     Action = () =>
                     {
                         importScoresButton.Enabled.Value = false;
@@ -74,7 +75,7 @@ namespace osu.Game.Overlays.Settings.Sections.Maintenance
 
             Add(deleteScoresButton = new DangerousSettingsButton
             {
-                Text = "Delete ALL scores",
+                Text = MaintenanceSettingsStrings.DeleteAllScores,
                 Action = () =>
                 {
                     dialogOverlay?.Push(new DeleteAllBeatmapsDialog(() =>
@@ -89,7 +90,7 @@ namespace osu.Game.Overlays.Settings.Sections.Maintenance
             {
                 Add(importSkinsButton = new SettingsButton
                 {
-                    Text = "Import skins from stable",
+                    Text = MaintenanceSettingsStrings.ImportSkinsFromStable,
                     Action = () =>
                     {
                         importSkinsButton.Enabled.Value = false;
@@ -100,7 +101,7 @@ namespace osu.Game.Overlays.Settings.Sections.Maintenance
 
             Add(deleteSkinsButton = new DangerousSettingsButton
             {
-                Text = "Delete ALL skins",
+                Text = MaintenanceSettingsStrings.DeleteAllSkins,
                 Action = () =>
                 {
                     dialogOverlay?.Push(new DeleteAllBeatmapsDialog(() =>
@@ -117,7 +118,7 @@ namespace osu.Game.Overlays.Settings.Sections.Maintenance
                 {
                     Add(importCollectionsButton = new SettingsButton
                     {
-                        Text = "Import collections from stable",
+                        Text = MaintenanceSettingsStrings.ImportCollectionsFromStable,
                         Action = () =>
                         {
                             importCollectionsButton.Enabled.Value = false;
@@ -128,7 +129,7 @@ namespace osu.Game.Overlays.Settings.Sections.Maintenance
 
                 Add(new DangerousSettingsButton
                 {
-                    Text = "Delete ALL collections",
+                    Text = MaintenanceSettingsStrings.DeleteAllCollections,
                     Action = () =>
                     {
                         dialogOverlay?.Push(new DeleteAllBeatmapsDialog(collectionManager.DeleteAll));
@@ -140,7 +141,7 @@ namespace osu.Game.Overlays.Settings.Sections.Maintenance
             {
                 restoreButton = new SettingsButton
                 {
-                    Text = "Restore all hidden difficulties",
+                    Text = MaintenanceSettingsStrings.RestoreAllHiddenDifficulties,
                     Action = () =>
                     {
                         restoreButton.Enabled.Value = false;
@@ -153,7 +154,7 @@ namespace osu.Game.Overlays.Settings.Sections.Maintenance
                 },
                 undeleteButton = new SettingsButton
                 {
-                    Text = "Restore all recently deleted beatmaps",
+                    Text = MaintenanceSettingsStrings.RestoreAllRecentlyDeletedBeatmaps,
                     Action = () =>
                     {
                         undeleteButton.Enabled.Value = false;

osu.Game/Overlays/Settings/Sections/MaintenanceSection.cs

@@ -3,6 +3,8 @@
 
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Sprites;
+using osu.Framework.Localisation;
+using osu.Game.Localisation;
 using osu.Game.Overlays.Settings.Sections.Maintenance;
 using osuTK;
 
@@ -10,7 +12,7 @@ namespace osu.Game.Overlays.Settings.Sections
 {
     public class MaintenanceSection : SettingsSection
     {
-        public override string Header => "Maintenance";
+        public override LocalisableString Header => MaintenanceSettingsStrings.MaintenanceSectionHeader;
 
         public override Drawable CreateIcon() => new SpriteIcon
         {

osu.Game/Overlays/Settings/Sections/Online/AlertsAndPrivacySettings.cs

@@ -5,12 +5,13 @@ using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Localisation;
 using osu.Game.Configuration;
+using osu.Game.Localisation;
 
 namespace osu.Game.Overlays.Settings.Sections.Online
 {
     public class AlertsAndPrivacySettings : SettingsSubsection
     {
-        protected override LocalisableString Header => "Alerts and Privacy";
+        protected override LocalisableString Header => OnlineSettingsStrings.AlertsAndPrivacyHeader;
 
         [BackgroundDependencyLoader]
         private void load(OsuConfigManager config)
@@ -19,12 +20,12 @@ namespace osu.Game.Overlays.Settings.Sections.Online
             {
                 new SettingsCheckbox
                 {
-                    LabelText = "Show a notification when someone mentions your name",
+                    LabelText = OnlineSettingsStrings.NotifyOnMentioned,
                     Current = config.GetBindable<bool>(OsuSetting.NotifyOnUsernameMentioned)
                 },
                 new SettingsCheckbox
                 {
-                    LabelText = "Show a notification when you receive a private message",
+                    LabelText = OnlineSettingsStrings.NotifyOnPrivateMessage,
                     Current = config.GetBindable<bool>(OsuSetting.NotifyOnPrivateMessage)
                 },
             };

osu.Game/Overlays/Settings/Sections/Online/IntegrationSettings.cs

@@ -5,12 +5,13 @@ using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Localisation;
 using osu.Game.Configuration;
+using osu.Game.Localisation;
 
 namespace osu.Game.Overlays.Settings.Sections.Online
 {
     public class IntegrationSettings : SettingsSubsection
     {
-        protected override LocalisableString Header => "Integrations";
+        protected override LocalisableString Header => OnlineSettingsStrings.IntegrationsHeader;
 
         [BackgroundDependencyLoader]
         private void load(OsuConfigManager config)
@@ -19,7 +20,7 @@ namespace osu.Game.Overlays.Settings.Sections.Online
             {
                 new SettingsEnumDropdown<DiscordRichPresenceMode>
                 {
-                    LabelText = "Discord Rich Presence",
+                    LabelText = OnlineSettingsStrings.DiscordRichPresence,
                     Current = config.GetBindable<DiscordRichPresenceMode>(OsuSetting.DiscordRichPresence)
                 }
             };

osu.Game/Overlays/Settings/Sections/Online/WebSettings.cs

@@ -5,12 +5,13 @@ using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Localisation;
 using osu.Game.Configuration;
+using osu.Game.Localisation;
 
 namespace osu.Game.Overlays.Settings.Sections.Online
 {
     public class WebSettings : SettingsSubsection
     {
-        protected override LocalisableString Header => "Web";
+        protected override LocalisableString Header => OnlineSettingsStrings.WebHeader;
 
         [BackgroundDependencyLoader]
         private void load(OsuConfigManager config)
@@ -19,24 +20,24 @@ namespace osu.Game.Overlays.Settings.Sections.Online
             {
                 new SettingsCheckbox
                 {
-                    LabelText = "Warn about opening external links",
+                    LabelText = OnlineSettingsStrings.ExternalLinkWarning,
                     Current = config.GetBindable<bool>(OsuSetting.ExternalLinkWarning)
                 },
                 new SettingsCheckbox
                 {
-                    LabelText = "Prefer downloads without video",
+                    LabelText = OnlineSettingsStrings.PreferNoVideo,
                     Keywords = new[] { "no-video" },
                     Current = config.GetBindable<bool>(OsuSetting.PreferNoVideo)
                 },
                 new SettingsCheckbox
                 {
-                    LabelText = "Automatically download beatmaps when spectating",
+                    LabelText = OnlineSettingsStrings.AutomaticallyDownloadWhenSpectating,
                     Keywords = new[] { "spectator" },
                     Current = config.GetBindable<bool>(OsuSetting.AutomaticallyDownloadWhenSpectating),
                 },
                 new SettingsCheckbox
                 {
-                    LabelText = "Show explicit content in search results",
+                    LabelText = OnlineSettingsStrings.ShowExplicitContent,
                     Keywords = new[] { "nsfw", "18+", "offensive" },
                     Current = config.GetBindable<bool>(OsuSetting.ShowOnlineExplicitContent),
                 }

osu.Game/Overlays/Settings/Sections/OnlineSection.cs

@@ -3,13 +3,15 @@
 
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Sprites;
+using osu.Framework.Localisation;
+using osu.Game.Localisation;
 using osu.Game.Overlays.Settings.Sections.Online;
 
 namespace osu.Game.Overlays.Settings.Sections
 {
     public class OnlineSection : SettingsSection
     {
-        public override string Header => "Online";
+        public override LocalisableString Header => OnlineSettingsStrings.OnlineSectionHeader;
 
         public override Drawable CreateIcon() => new SpriteIcon
         {

osu.Game/Overlays/Settings/Sections/SkinSection.cs

@@ -13,6 +13,7 @@ using osu.Framework.Localisation;
 using osu.Framework.Logging;
 using osu.Game.Configuration;
 using osu.Game.Graphics.UserInterface;
+using osu.Game.Localisation;
 using osu.Game.Skinning;
 using osu.Game.Skinning.Editor;
 using osuTK;
@@ -23,7 +24,7 @@ namespace osu.Game.Overlays.Settings.Sections
     {
         private SkinSettingsDropdown skinDropdown;
 
-        public override string Header => "Skin";
+        public override LocalisableString Header => SkinSettingsStrings.SkinSectionHeader;
 
         public override Drawable CreateIcon() => new SpriteIcon
         {
@@ -69,34 +70,34 @@ namespace osu.Game.Overlays.Settings.Sections
                 skinDropdown = new SkinSettingsDropdown(),
                 new SettingsButton
                 {
-                    Text = "Skin layout editor",
+                    Text = SkinSettingsStrings.SkinLayoutEditor,
                     Action = () => skinEditor?.Toggle(),
                 },
                 new ExportSkinButton(),
                 new SettingsSlider<float, SizeSlider>
                 {
-                    LabelText = "Gameplay cursor size",
+                    LabelText = SkinSettingsStrings.GameplayCursorSize,
                     Current = config.GetBindable<float>(OsuSetting.GameplayCursorSize),
                     KeyboardStep = 0.01f
                 },
                 new SettingsCheckbox
                 {
-                    LabelText = "Adjust gameplay cursor size based on current beatmap",
+                    LabelText = SkinSettingsStrings.AutoCursorSize,
                     Current = config.GetBindable<bool>(OsuSetting.AutoCursorSize)
                 },
                 new SettingsCheckbox
                 {
-                    LabelText = "Beatmap skins",
+                    LabelText = SkinSettingsStrings.BeatmapSkins,
                     Current = config.GetBindable<bool>(OsuSetting.BeatmapSkins)
                 },
                 new SettingsCheckbox
                 {
-                    LabelText = "Beatmap colours",
+                    LabelText = SkinSettingsStrings.BeatmapColours,
                     Current = config.GetBindable<bool>(OsuSetting.BeatmapColours)
                 },
                 new SettingsCheckbox
                 {
-                    LabelText = "Beatmap hitsounds",
+                    LabelText = SkinSettingsStrings.BeatmapHitsounds,
                     Current = config.GetBindable<bool>(OsuSetting.BeatmapHitsounds)
                 },
             };
@@ -200,7 +201,7 @@ namespace osu.Game.Overlays.Settings.Sections
             [BackgroundDependencyLoader]
             private void load()
             {
-                Text = "Export selected skin";
+                Text = SkinSettingsStrings.ExportSkinButton;
                 Action = export;
 
                 currentSkin = skins.CurrentSkin.GetBoundCopy();

osu.Game/Overlays/Settings/Sections/UserInterface/GeneralSettings.cs

@@ -6,12 +6,13 @@ using osu.Framework.Graphics;
 using osu.Framework.Localisation;
 using osu.Game.Configuration;
 using osu.Game.Graphics.UserInterface;
+using osu.Game.Localisation;
 
 namespace osu.Game.Overlays.Settings.Sections.UserInterface
 {
     public class GeneralSettings : SettingsSubsection
     {
-        protected override LocalisableString Header => "General";
+        protected override LocalisableString Header => UserInterfaceStrings.GeneralHeader;
 
         [BackgroundDependencyLoader]
         private void load(OsuConfigManager config)
@@ -20,23 +21,23 @@ namespace osu.Game.Overlays.Settings.Sections.UserInterface
             {
                 new SettingsCheckbox
                 {
-                    LabelText = "Rotate cursor when dragging",
+                    LabelText = UserInterfaceStrings.CursorRotation,
                     Current = config.GetBindable<bool>(OsuSetting.CursorRotation)
                 },
                 new SettingsSlider<float, SizeSlider>
                 {
-                    LabelText = "Menu cursor size",
+                    LabelText = UserInterfaceStrings.MenuCursorSize,
                     Current = config.GetBindable<float>(OsuSetting.MenuCursorSize),
                     KeyboardStep = 0.01f
                 },
                 new SettingsCheckbox
                 {
-                    LabelText = "Parallax",
+                    LabelText = UserInterfaceStrings.Parallax,
                     Current = config.GetBindable<bool>(OsuSetting.MenuParallax)
                 },
                 new SettingsSlider<float, TimeSlider>
                 {
-                    LabelText = "Hold-to-confirm activation time",
+                    LabelText = UserInterfaceStrings.HoldToConfirmActivationTime,
                     Current = config.GetBindable<float>(OsuSetting.UIHoldActivationDelay),
                     KeyboardStep = 50
                 },

osu.Game/Overlays/Settings/Sections/UserInterface/MainMenuSettings.cs

@@ -6,6 +6,7 @@ using osu.Framework.Bindables;
 using osu.Framework.Graphics;
 using osu.Framework.Localisation;
 using osu.Game.Configuration;
+using osu.Game.Localisation;
 using osu.Game.Online.API;
 using osu.Game.Users;
 
@@ -13,7 +14,7 @@ namespace osu.Game.Overlays.Settings.Sections.UserInterface
 {
     public class MainMenuSettings : SettingsSubsection
     {
-        protected override LocalisableString Header => "Main Menu";
+        protected override LocalisableString Header => UserInterfaceStrings.MainMenuHeader;
 
         private IBindable<User> user;
 
@@ -28,27 +29,27 @@ namespace osu.Game.Overlays.Settings.Sections.UserInterface
             {
                 new SettingsCheckbox
                 {
-                    LabelText = "Interface voices",
+                    LabelText = UserInterfaceStrings.InterfaceVoices,
                     Current = config.GetBindable<bool>(OsuSetting.MenuVoice)
                 },
                 new SettingsCheckbox
                 {
-                    LabelText = "osu! music theme",
+                    LabelText = UserInterfaceStrings.OsuMusicTheme,
                     Current = config.GetBindable<bool>(OsuSetting.MenuMusic)
                 },
                 new SettingsEnumDropdown<IntroSequence>
                 {
-                    LabelText = "Intro sequence",
+                    LabelText = UserInterfaceStrings.IntroSequence,
                     Current = config.GetBindable<IntroSequence>(OsuSetting.IntroSequence),
                 },
                 backgroundSourceDropdown = new SettingsEnumDropdown<BackgroundSource>
                 {
-                    LabelText = "Background source",
+                    LabelText = UserInterfaceStrings.BackgroundSource,
                     Current = config.GetBindable<BackgroundSource>(OsuSetting.MenuBackgroundSource),
                 },
                 new SettingsEnumDropdown<SeasonalBackgroundMode>
                 {
-                    LabelText = "Seasonal backgrounds",
+                    LabelText = UserInterfaceStrings.SeasonalBackgrounds,
                     Current = config.GetBindable<SeasonalBackgroundMode>(OsuSetting.SeasonalBackgroundMode),
                 }
             };
@@ -60,9 +61,7 @@ namespace osu.Game.Overlays.Settings.Sections.UserInterface
 
             user.BindValueChanged(u =>
             {
-                const string not_supporter_note = "Changes to this setting will only apply with an active osu!supporter tag.";
-
-                backgroundSourceDropdown.WarningText = u.NewValue?.IsSupporter != true ? not_supporter_note : string.Empty;
+                backgroundSourceDropdown.WarningText = u.NewValue?.IsSupporter != true ? UserInterfaceStrings.NotSupporterNote : default;
             }, true);
         }
     }

osu.Game/Overlays/Settings/Sections/UserInterface/SongSelectSettings.cs

@@ -8,6 +8,7 @@ using osu.Framework.Graphics;
 using osu.Framework.Localisation;
 using osu.Game.Configuration;
 using osu.Game.Graphics.UserInterface;
+using osu.Game.Localisation;
 
 namespace osu.Game.Overlays.Settings.Sections.UserInterface
 {
@@ -16,7 +17,7 @@ namespace osu.Game.Overlays.Settings.Sections.UserInterface
         private Bindable<double> minStars;
         private Bindable<double> maxStars;
 
-        protected override LocalisableString Header => "Song Select";
+        protected override LocalisableString Header => UserInterfaceStrings.SongSelectHeader;
 
         [BackgroundDependencyLoader]
         private void load(OsuConfigManager config)
@@ -31,31 +32,31 @@ namespace osu.Game.Overlays.Settings.Sections.UserInterface
             {
                 new SettingsCheckbox
                 {
-                    LabelText = "Right mouse drag to absolute scroll",
+                    LabelText = UserInterfaceStrings.RightMouseScroll,
                     Current = config.GetBindable<bool>(OsuSetting.SongSelectRightMouseScroll),
                 },
                 new SettingsCheckbox
                 {
-                    LabelText = "Show converted beatmaps",
+                    LabelText = UserInterfaceStrings.ShowConvertedBeatmaps,
                     Current = config.GetBindable<bool>(OsuSetting.ShowConvertedBeatmaps),
                 },
                 new SettingsSlider<double, StarsSlider>
                 {
-                    LabelText = "Display beatmaps from",
+                    LabelText = UserInterfaceStrings.StarsMinimum,
                     Current = config.GetBindable<double>(OsuSetting.DisplayStarsMinimum),
                     KeyboardStep = 0.1f,
                     Keywords = new[] { "minimum", "maximum", "star", "difficulty" }
                 },
                 new SettingsSlider<double, MaximumStarsSlider>
                 {
-                    LabelText = "up to",
+                    LabelText = UserInterfaceStrings.StarsMaximum,
                     Current = config.GetBindable<double>(OsuSetting.DisplayStarsMaximum),
                     KeyboardStep = 0.1f,
                     Keywords = new[] { "minimum", "maximum", "star", "difficulty" }
                 },
                 new SettingsEnumDropdown<RandomSelectAlgorithm>
                 {
-                    LabelText = "Random selection algorithm",
+                    LabelText = UserInterfaceStrings.RandomSelectionAlgorithm,
                     Current = config.GetBindable<RandomSelectAlgorithm>(OsuSetting.RandomSelectAlgorithm),
                 }
             };
@@ -63,7 +64,7 @@ namespace osu.Game.Overlays.Settings.Sections.UserInterface
 
         private class MaximumStarsSlider : StarsSlider
         {
-            public override LocalisableString TooltipText => Current.IsDefault ? "no limit" : base.TooltipText;
+            public override LocalisableString TooltipText => Current.IsDefault ? UserInterfaceStrings.NoLimit : base.TooltipText;
         }
 
         private class StarsSlider : OsuSliderBar<double>

osu.Game/Overlays/Settings/Sections/UserInterfaceSection.cs

@@ -3,13 +3,15 @@
 
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Sprites;
+using osu.Framework.Localisation;
+using osu.Game.Localisation;
 using osu.Game.Overlays.Settings.Sections.UserInterface;
 
 namespace osu.Game.Overlays.Settings.Sections
 {
     public class UserInterfaceSection : SettingsSection
     {
-        public override string Header => "User Interface";
+        public override LocalisableString Header => UserInterfaceStrings.UserInterfaceSectionHeader;
 
         public override Drawable CreateIcon() => new SpriteIcon
         {

osu.Game/Overlays/Settings/SettingsItem.cs

@@ -73,13 +73,7 @@ namespace osu.Game.Overlays.Settings
                         return;
 
                     // construct lazily for cases where the label is not needed (may be provided by the Control).
-                    FlowContent.Add(warningText = new OsuTextFlowContainer
-                    {
-                        Colour = colours.Yellow,
-                        Margin = new MarginPadding { Bottom = 5 },
-                        RelativeSizeAxes = Axes.X,
-                        AutoSizeAxes = Axes.Y,
-                    });
+                    FlowContent.Add(warningText = new SettingsNoticeText(colours) { Margin = new MarginPadding { Bottom = 5 } });
                 }
 
                 warningText.Alpha = hasValue ? 0 : 1;

osu.Game/Overlays/Settings/SettingsNoticeText.cs

@@ -0,0 +1,19 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using osu.Framework.Graphics;
+using osu.Game.Graphics;
+using osu.Game.Graphics.Containers;
+
+namespace osu.Game.Overlays.Settings
+{
+    public class SettingsNoticeText : LinkFlowContainer
+    {
+        public SettingsNoticeText(OsuColour colours)
+            : base(s => s.Colour = colours.Yellow)
+        {
+            RelativeSizeAxes = Axes.X;
+            AutoSizeAxes = Axes.Y;
+        }
+    }
+}

osu.Game/Overlays/Settings/SettingsSection.cs

@@ -7,6 +7,7 @@ using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Shapes;
+using osu.Framework.Localisation;
 using osu.Game.Graphics;
 using osu.Game.Graphics.Sprites;
 using osuTK.Graphics;
@@ -19,10 +20,10 @@ namespace osu.Game.Overlays.Settings
         protected override Container<Drawable> Content => FlowContent;
 
         public abstract Drawable CreateIcon();
-        public abstract string Header { get; }
+        public abstract LocalisableString Header { get; }
 
         public IEnumerable<IFilterable> FilterableChildren => Children.OfType<IFilterable>();
-        public virtual IEnumerable<string> FilterTerms => new[] { Header };
+        public virtual IEnumerable<string> FilterTerms => new[] { Header.ToString() };
 
         private const int header_size = 26;
         private const int margin = 20;

osu.Game/Overlays/Settings/SettingsSubsection.cs

@@ -24,6 +24,11 @@ namespace osu.Game.Overlays.Settings
         protected abstract LocalisableString Header { get; }
 
         public IEnumerable<IFilterable> FilterableChildren => Children.OfType<IFilterable>();
+
+        // FilterTerms should contains both original string and localised string for user to search.
+        // Since LocalisableString is unable to get original string at this time (2021-08-14),
+        // only call .ToString() to use localised one.
+        // TODO: Update here when FilterTerms accept LocalisableString.
         public virtual IEnumerable<string> FilterTerms => new[] { Header.ToString() };
 
         public bool MatchingFilter

osu.Game/Rulesets/Mods/DifficultyAdjustSettingsControl.cs

@@ -91,7 +91,13 @@ namespace osu.Game.Rulesets.Mods
         {
             // This is required as SettingsItem relies heavily on this bindable for internal use.
             // The actual update flow is done via the bindable provided in the constructor.
-            public Bindable<float?> Current { get; set; } = new Bindable<float?>();
+            private readonly BindableWithCurrent<float?> current = new BindableWithCurrent<float?>();
+
+            public Bindable<float?> Current
+            {
+                get => current.Current;
+                set => current.Current = value;
+            }
 
             public SliderControl(BindableNumber<float> currentNumber)
             {

osu.Game/Rulesets/Mods/ModFailCondition.cs

@@ -2,6 +2,8 @@
 // See the LICENCE file in the repository root for full licence text.
 
 using System;
+using osu.Framework.Bindables;
+using osu.Game.Configuration;
 using osu.Game.Rulesets.Judgements;
 using osu.Game.Rulesets.Scoring;
 
@@ -11,9 +13,12 @@ namespace osu.Game.Rulesets.Mods
     {
         public override Type[] IncompatibleMods => new[] { typeof(ModNoFail), typeof(ModRelax), typeof(ModAutoplay) };
 
+        [SettingSource("Restart on fail", "Automatically restarts when failed.")]
+        public BindableBool Restart { get; } = new BindableBool();
+
         public virtual bool PerformFail() => true;
 
-        public virtual bool RestartOnFail => true;
+        public virtual bool RestartOnFail => Restart.Value;
 
         public void ApplyToHealthProcessor(HealthProcessor healthProcessor)
         {

osu.Game/Rulesets/Mods/ModPerfect.cs

@@ -21,6 +21,11 @@ namespace osu.Game.Rulesets.Mods
 
         public override Type[] IncompatibleMods => base.IncompatibleMods.Append(typeof(ModSuddenDeath)).ToArray();
 
+        protected ModPerfect()
+        {
+            Restart.Value = Restart.Default = true;
+        }
+
         protected override bool FailCondition(HealthProcessor healthProcessor, JudgementResult result)
             => result.Type.AffectsAccuracy()
                && result.Type != result.Judgement.MaxResult;

osu.Game/Screens/Edit/Compose/ComposeScreen.cs

@@ -15,7 +15,6 @@ using osu.Game.Extensions;
 using osu.Game.Rulesets;
 using osu.Game.Rulesets.Edit;
 using osu.Game.Screens.Edit.Compose.Components.Timeline;
-using osu.Game.Skinning;
 
 namespace osu.Game.Screens.Edit.Compose
 {
@@ -73,7 +72,7 @@ namespace osu.Game.Screens.Edit.Compose
         {
             Debug.Assert(ruleset != null);
 
-            return new RulesetSkinProvidingContainer(ruleset, EditorBeatmap.PlayableBeatmap, beatmap.Value.Skin).WithChild(content);
+            return new EditorSkinProvidingContainer(EditorBeatmap).WithChild(content);
         }
 
         #region Input Handling

osu.Game/Screens/Edit/Editor.cs

@@ -153,7 +153,7 @@ namespace osu.Game.Screens.Edit
             // todo: remove caching of this and consume via editorBeatmap?
             dependencies.Cache(beatDivisor);
 
-            AddInternal(editorBeatmap = new EditorBeatmap(playableBeatmap, loadableBeatmap.Skin));
+            AddInternal(editorBeatmap = new EditorBeatmap(playableBeatmap, loadableBeatmap.GetSkin()));
             dependencies.CacheAs(editorBeatmap);
             changeHandler = new EditorChangeHandler(editorBeatmap);
             dependencies.CacheAs<IEditorChangeHandler>(changeHandler);

osu.Game/Screens/Edit/EditorBeatmap.cs

@@ -54,7 +54,7 @@ namespace osu.Game.Screens.Edit
         private readonly Bindable<bool> hasTiming = new Bindable<bool>();
 
         [CanBeNull]
-        public readonly ISkin BeatmapSkin;
+        public readonly EditorBeatmapSkin BeatmapSkin;
 
         [Resolved]
         private BindableBeatDivisor beatDivisor { get; set; }
@@ -69,7 +69,8 @@ namespace osu.Game.Screens.Edit
         public EditorBeatmap(IBeatmap playableBeatmap, ISkin beatmapSkin = null)
         {
             PlayableBeatmap = playableBeatmap;
-            BeatmapSkin = beatmapSkin;
+            if (beatmapSkin is Skin skin)
+                BeatmapSkin = new EditorBeatmapSkin(skin);
 
             beatmapProcessor = playableBeatmap.BeatmapInfo.Ruleset?.CreateInstance().CreateBeatmapProcessor(PlayableBeatmap);
 

osu.Game/Screens/Edit/EditorBeatmapSkin.cs

@@ -0,0 +1,59 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using System;
+using System.Linq;
+using osu.Framework.Audio.Sample;
+using osu.Framework.Bindables;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.OpenGL.Textures;
+using osu.Framework.Graphics.Textures;
+using osu.Game.Audio;
+using osu.Game.Skinning;
+using osuTK.Graphics;
+
+namespace osu.Game.Screens.Edit
+{
+    /// <summary>
+    /// A beatmap skin which is being edited.
+    /// </summary>
+    public class EditorBeatmapSkin : ISkin
+    {
+        public event Action BeatmapSkinChanged;
+
+        /// <summary>
+        /// The combo colours of this skin.
+        /// If empty, the default combo colours will be used.
+        /// </summary>
+        public readonly BindableList<Colour4> ComboColours;
+
+        private readonly Skin skin;
+
+        public EditorBeatmapSkin(Skin skin)
+        {
+            this.skin = skin;
+
+            ComboColours = new BindableList<Colour4>();
+            if (skin.Configuration.ComboColours != null)
+                ComboColours.AddRange(skin.Configuration.ComboColours.Select(c => (Colour4)c));
+            ComboColours.BindCollectionChanged((_, __) => updateColours());
+        }
+
+        private void invokeSkinChanged() => BeatmapSkinChanged?.Invoke();
+
+        private void updateColours()
+        {
+            skin.Configuration.CustomComboColours = ComboColours.Select(c => (Color4)c).ToList();
+            invokeSkinChanged();
+        }
+
+        #region Delegated ISkin implementation
+
+        public Drawable GetDrawableComponent(ISkinComponent component) => skin.GetDrawableComponent(component);
+        public Texture GetTexture(string componentName, WrapMode wrapModeS, WrapMode wrapModeT) => skin.GetTexture(componentName, wrapModeS, wrapModeT);
+        public ISample GetSample(ISampleInfo sampleInfo) => skin.GetSample(sampleInfo);
+        public IBindable<TValue> GetConfig<TLookup, TValue>(TLookup lookup) => skin.GetConfig<TLookup, TValue>(lookup);
+
+        #endregion
+    }
+}

osu.Game/Screens/Edit/EditorSkinProvidingContainer.cs

@@ -0,0 +1,40 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using osu.Game.Skinning;
+
+#nullable enable
+
+namespace osu.Game.Screens.Edit
+{
+    /// <summary>
+    /// A <see cref="SkinProvidingContainer"/> that fires <see cref="ISkinSource.SourceChanged"/> when users have made a change to the beatmap skin
+    /// of the map being edited.
+    /// </summary>
+    public class EditorSkinProvidingContainer : RulesetSkinProvidingContainer
+    {
+        private readonly EditorBeatmapSkin? beatmapSkin;
+
+        public EditorSkinProvidingContainer(EditorBeatmap editorBeatmap)
+            : base(editorBeatmap.PlayableBeatmap.BeatmapInfo.Ruleset.CreateInstance(), editorBeatmap, editorBeatmap.BeatmapSkin)
+        {
+            beatmapSkin = editorBeatmap.BeatmapSkin;
+        }
+
+        protected override void LoadComplete()
+        {
+            base.LoadComplete();
+
+            if (beatmapSkin != null)
+                beatmapSkin.BeatmapSkinChanged += TriggerSourceChanged;
+        }
+
+        protected override void Dispose(bool isDisposing)
+        {
+            base.Dispose(isDisposing);
+
+            if (beatmapSkin != null)
+                beatmapSkin.BeatmapSkinChanged -= TriggerSourceChanged;
+        }
+    }
+}

osu.Game/Screens/Edit/LegacyEditorBeatmapPatcher.cs

@@ -118,7 +118,7 @@ namespace osu.Game.Screens.Edit
 
             protected override Track GetBeatmapTrack() => throw new NotImplementedException();
 
-            protected override ISkin GetSkin() => throw new NotImplementedException();
+            protected internal override ISkin GetSkin() => throw new NotImplementedException();
 
             public override Stream GetStream(string storagePath) => throw new NotImplementedException();
         }

osu.Game/Screens/Edit/Setup/ColoursSection.cs

@@ -1,14 +1,10 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-using System.Collections.Generic;
-using System.Linq;
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Localisation;
 using osu.Game.Graphics.UserInterfaceV2;
-using osu.Game.Skinning;
-using osuTK.Graphics;
 
 namespace osu.Game.Screens.Edit.Setup
 {
@@ -31,9 +27,8 @@ namespace osu.Game.Screens.Edit.Setup
                 }
             };
 
-            var colours = Beatmap.BeatmapSkin?.GetConfig<GlobalSkinColours, IReadOnlyList<Color4>>(GlobalSkinColours.ComboColours)?.Value;
-            if (colours != null)
-                comboColours.Colours.AddRange(colours.Select(c => (Colour4)c));
+            if (Beatmap.BeatmapSkin != null)
+                comboColours.Colours.BindTo(Beatmap.BeatmapSkin.ComboColours);
         }
     }
 }

osu.Game/Screens/OnlinePlay/Components/OnlinePlayBackgroundSprite.cs

@@ -10,12 +10,12 @@ namespace osu.Game.Screens.OnlinePlay.Components
 {
     public class OnlinePlayBackgroundSprite : OnlinePlayComposite
     {
-        private readonly BeatmapSetCoverType beatmapSetCoverType;
+        protected readonly BeatmapSetCoverType BeatmapSetCoverType;
         private UpdateableBeatmapBackgroundSprite sprite;
 
         public OnlinePlayBackgroundSprite(BeatmapSetCoverType beatmapSetCoverType = BeatmapSetCoverType.Cover)
         {
-            this.beatmapSetCoverType = beatmapSetCoverType;
+            BeatmapSetCoverType = beatmapSetCoverType;
         }
 
         [BackgroundDependencyLoader]
@@ -33,6 +33,6 @@ namespace osu.Game.Screens.OnlinePlay.Components
             sprite.Beatmap.Value = Playlist.FirstOrDefault()?.Beatmap.Value;
         }
 
-        protected virtual UpdateableBeatmapBackgroundSprite CreateBackgroundSprite() => new UpdateableBeatmapBackgroundSprite(beatmapSetCoverType) { RelativeSizeAxes = Axes.Both };
+        protected virtual UpdateableBeatmapBackgroundSprite CreateBackgroundSprite() => new UpdateableBeatmapBackgroundSprite(BeatmapSetCoverType) { RelativeSizeAxes = Axes.Both };
     }
 }

osu.Game/Screens/OnlinePlay/Lounge/Components/DrawableRoom.cs

@@ -158,21 +158,14 @@ namespace osu.Game.Screens.OnlinePlay.Lounge.Components
             Children = new Drawable[]
             {
                 // This resolves internal 1px gaps due to applying the (parenting) corner radius and masking across multiple filling background sprites.
-                new BufferedContainer
+                new Box
                 {
                     RelativeSizeAxes = Axes.Both,
-                    Children = new Drawable[]
-                    {
-                        new Box
-                        {
-                            RelativeSizeAxes = Axes.Both,
-                            Colour = colours.Background5,
-                        },
-                        new OnlinePlayBackgroundSprite
-                        {
-                            RelativeSizeAxes = Axes.Both
-                        },
-                    }
+                    Colour = colours.Background5,
+                },
+                new OnlinePlayBackgroundSprite
+                {
+                    RelativeSizeAxes = Axes.Both
                 },
                 new Container
                 {
@@ -187,37 +180,29 @@ namespace osu.Game.Screens.OnlinePlay.Lounge.Components
                         CornerRadius = corner_radius,
                         Children = new Drawable[]
                         {
-                            // This resolves internal 1px gaps due to applying the (parenting) corner radius and masking across multiple filling background sprites.
-                            new BufferedContainer
+                            new GridContainer
                             {
                                 RelativeSizeAxes = Axes.Both,
-                                Children = new Drawable[]
+                                ColumnDimensions = new[]
                                 {
-                                    new GridContainer
-                                    {
-                                        RelativeSizeAxes = Axes.Both,
-                                        ColumnDimensions = new[]
-                                        {
-                                            new Dimension(GridSizeMode.Relative, 0.2f)
-                                        },
-                                        Content = new[]
-                                        {
-                                            new Drawable[]
-                                            {
-                                                new Box
-                                                {
-                                                    RelativeSizeAxes = Axes.Both,
-                                                    Colour = colours.Background5,
-                                                },
-                                                new Box
-                                                {
-                                                    RelativeSizeAxes = Axes.Both,
-                                                    Colour = ColourInfo.GradientHorizontal(colours.Background5, colours.Background5.Opacity(0.3f))
-                                                },
-                                            }
-                                        }
-                                    },
+                                    new Dimension(GridSizeMode.Relative, 0.2f)
                                 },
+                                Content = new[]
+                                {
+                                    new Drawable[]
+                                    {
+                                        new Box
+                                        {
+                                            RelativeSizeAxes = Axes.Both,
+                                            Colour = colours.Background5,
+                                        },
+                                        new Box
+                                        {
+                                            RelativeSizeAxes = Axes.Both,
+                                            Colour = ColourInfo.GradientHorizontal(colours.Background5, colours.Background5.Opacity(0.3f))
+                                        },
+                                    }
+                                }
                             },
                             new Container
                             {

osu.Game/Screens/OnlinePlay/Multiplayer/Participants/ParticipantPanel.cs

@@ -2,7 +2,6 @@
 // See the LICENCE file in the repository root for full licence text.
 
 using System.Collections.Generic;
-using System.Diagnostics;
 using System.Linq;
 using osu.Framework.Allocation;
 using osu.Framework.Extensions.Color4Extensions;
@@ -83,7 +82,7 @@ namespace osu.Game.Screens.OnlinePlay.Multiplayer.Participants
                             Colour = Color4Extensions.FromHex("#F7E65D"),
                             Alpha = 0
                         },
-                        new TeamDisplay(user),
+                        new TeamDisplay(User),
                         new Container
                         {
                             RelativeSizeAxes = Axes.Both,
@@ -168,12 +167,7 @@ namespace osu.Game.Screens.OnlinePlay.Multiplayer.Participants
                             Origin = Anchor.Centre,
                             Alpha = 0,
                             Margin = new MarginPadding(4),
-                            Action = () =>
-                            {
-                                Debug.Assert(user != null);
-
-                                Client.KickUser(user.Id);
-                            }
+                            Action = () => Client.KickUser(User.UserID),
                         },
                     },
                 }

osu.Game/Screens/OnlinePlay/Multiplayer/Participants/TeamDisplay.cs

@@ -11,7 +11,6 @@ using osu.Game.Graphics;
 using osu.Game.Graphics.Containers;
 using osu.Game.Online.Multiplayer;
 using osu.Game.Online.Multiplayer.MatchTypes.TeamVersus;
-using osu.Game.Users;
 using osuTK;
 using osuTK.Graphics;
 
@@ -19,16 +18,14 @@ namespace osu.Game.Screens.OnlinePlay.Multiplayer.Participants
 {
     internal class TeamDisplay : MultiplayerRoomComposite
     {
-        private readonly User user;
+        private readonly MultiplayerRoomUser user;
+
         private Drawable box;
 
         [Resolved]
         private OsuColour colours { get; set; }
 
-        [Resolved]
-        private MultiplayerClient client { get; set; }
-
-        public TeamDisplay(User user)
+        public TeamDisplay(MultiplayerRoomUser user)
         {
             this.user = user;
 
@@ -61,7 +58,7 @@ namespace osu.Game.Screens.OnlinePlay.Multiplayer.Participants
                 }
             };
 
-            if (user.Id == client.LocalUser?.UserID)
+            if (Client.LocalUser?.Equals(user) == true)
             {
                 InternalChild = new OsuClickableContainer
                 {
@@ -79,9 +76,9 @@ namespace osu.Game.Screens.OnlinePlay.Multiplayer.Participants
 
         private void changeTeam()
         {
-            client.SendMatchRequest(new ChangeTeamRequest
+            Client.SendMatchRequest(new ChangeTeamRequest
             {
-                TeamID = ((client.LocalUser?.MatchState as TeamVersusUserState)?.TeamID + 1) % 2 ?? 0,
+                TeamID = ((Client.LocalUser?.MatchState as TeamVersusUserState)?.TeamID + 1) % 2 ?? 0,
             });
         }
 
@@ -93,7 +90,7 @@ namespace osu.Game.Screens.OnlinePlay.Multiplayer.Participants
 
             // we don't have a way of knowing when an individual user's state has updated, so just handle on RoomUpdated for now.
 
-            var userRoomState = Room?.Users.FirstOrDefault(u => u.UserID == user.Id)?.MatchState;
+            var userRoomState = Room?.Users.FirstOrDefault(u => u.Equals(user))?.MatchState;
 
             const double duration = 400;
 

osu.Game/Screens/OnlinePlay/OnlinePlayScreen.cs

@@ -11,6 +11,7 @@ using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Shapes;
 using osu.Framework.Logging;
 using osu.Framework.Screens;
+using osu.Game.Beatmaps;
 using osu.Game.Beatmaps.Drawables;
 using osu.Game.Graphics.Containers;
 using osu.Game.Online.API;
@@ -98,14 +99,9 @@ namespace osu.Game.Screens.OnlinePlay
                         RelativeSizeAxes = Axes.Both,
                         Children = new Drawable[]
                         {
-                            new BufferedContainer
+                            new BeatmapBackgroundSprite
                             {
-                                RelativeSizeAxes = Axes.Both,
-                                BlurSigma = new Vector2(10),
-                                Child = new BeatmapBackgroundSprite
-                                {
-                                    RelativeSizeAxes = Axes.Both
-                                }
+                                RelativeSizeAxes = Axes.Both
                             },
                             new Box
                             {
@@ -286,11 +282,46 @@ namespace osu.Game.Screens.OnlinePlay
 
         private class BeatmapBackgroundSprite : OnlinePlayBackgroundSprite
         {
-            protected override UpdateableBeatmapBackgroundSprite CreateBackgroundSprite() => new BackgroundSprite { RelativeSizeAxes = Axes.Both };
+            protected override UpdateableBeatmapBackgroundSprite CreateBackgroundSprite() => new BlurredBackgroundSprite(BeatmapSetCoverType) { RelativeSizeAxes = Axes.Both };
 
-            private class BackgroundSprite : UpdateableBeatmapBackgroundSprite
+            public class BlurredBackgroundSprite : UpdateableBeatmapBackgroundSprite
             {
+                public BlurredBackgroundSprite(BeatmapSetCoverType type)
+                    : base(type)
+                {
+                }
+
                 protected override double LoadDelay => 200;
+
+                protected override Drawable CreateDrawable(BeatmapInfo model) =>
+                    new BufferedLoader(base.CreateDrawable(model));
+            }
+
+            // This class is an unfortunate requirement due to `LongRunningLoad` requiring direct async loading.
+            // It means that if the web request fetching the beatmap background takes too long, it will suddenly appear.
+            internal class BufferedLoader : BufferedContainer
+            {
+                private readonly Drawable drawable;
+
+                public BufferedLoader(Drawable drawable)
+                {
+                    this.drawable = drawable;
+
+                    RelativeSizeAxes = Axes.Both;
+                    BlurSigma = new Vector2(10);
+                    FrameBufferScale = new Vector2(0.5f);
+                    CacheDrawnFrameBuffer = true;
+                }
+
+                [BackgroundDependencyLoader]
+                private void load()
+                {
+                    LoadComponentAsync(drawable, d =>
+                    {
+                        Add(d);
+                        ForceRedraw();
+                    });
+                }
             }
         }
 

osu.Game/Screens/Play/HUDOverlay.cs

@@ -57,8 +57,6 @@ namespace osu.Game.Screens.Play
 
         private Bindable<HUDVisibilityMode> configVisibilityMode;
 
-        private readonly Container visibilityContainer;
-
         private readonly BindableBool replayLoaded = new BindableBool();
 
         private static bool hasShownNotificationOnce;
@@ -72,7 +70,7 @@ namespace osu.Game.Screens.Play
 
         private readonly SkinnableTargetContainer mainComponents;
 
-        private IEnumerable<Drawable> hideTargets => new Drawable[] { visibilityContainer, KeyCounter, topRightElements };
+        private IEnumerable<Drawable> hideTargets => new Drawable[] { mainComponents, KeyCounter, topRightElements };
 
         public HUDOverlay(DrawableRuleset drawableRuleset, IReadOnlyList<Mod> mods)
         {
@@ -84,13 +82,9 @@ namespace osu.Game.Screens.Play
             Children = new Drawable[]
             {
                 CreateFailingLayer(),
-                visibilityContainer = new Container
+                mainComponents = new SkinnableTargetContainer(SkinnableTarget.MainHUDComponents)
                 {
                     RelativeSizeAxes = Axes.Both,
-                    Child = mainComponents = new SkinnableTargetContainer(SkinnableTarget.MainHUDComponents)
-                    {
-                        RelativeSizeAxes = Axes.Both,
-                    },
                 },
                 topRightElements = new FillFlowContainer
                 {

osu.Game/Screens/Play/SongProgress.cs

@@ -125,7 +125,7 @@ namespace osu.Game.Screens.Play
                 Objects = drawableRuleset.Objects;
             }
 
-            config.BindWith(OsuSetting.ShowDifficultyGraph, ShowGraph);
+            config.BindWith(OsuSetting.ShowProgressGraph, ShowGraph);
 
             graph.FillColour = bar.FillColour = colours.BlueLighter;
         }

osu.Game/Skinning/DefaultLegacySkin.cs

@@ -1,6 +1,7 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
+using System.Collections.Generic;
 using JetBrains.Annotations;
 using osu.Framework.IO.Stores;
 using osu.Game.Extensions;
@@ -21,12 +22,13 @@ namespace osu.Game.Skinning
             : base(skin, new NamespacedResourceStore<byte[]>(resources.Resources, "Skins/Legacy"), resources, string.Empty)
         {
             Configuration.CustomColours["SliderBall"] = new Color4(2, 170, 255, 255);
-            Configuration.AddComboColours(
+            Configuration.CustomComboColours = new List<Color4>
+            {
                 new Color4(255, 192, 0, 255),
                 new Color4(0, 202, 0, 255),
                 new Color4(18, 124, 255, 255),
                 new Color4(242, 24, 57, 255)
-            );
+            };
 
             Configuration.LegacyVersion = 2.7m;
         }

osu.Game/Skinning/SkinConfiguration.cs

@@ -27,14 +27,14 @@ namespace osu.Game.Skinning
             new Color4(242, 24, 57, 255),
         };
 
-        private readonly List<Color4> comboColours = new List<Color4>();
+        public List<Color4> CustomComboColours { get; set; } = new List<Color4>();
 
         public IReadOnlyList<Color4> ComboColours
         {
             get
             {
-                if (comboColours.Count > 0)
-                    return comboColours;
+                if (CustomComboColours.Count > 0)
+                    return CustomComboColours;
 
                 if (AllowDefaultComboColoursFallback)
                     return DefaultComboColours;
@@ -43,7 +43,7 @@ namespace osu.Game.Skinning
             }
         }
 
-        public void AddComboColours(params Color4[] colours) => comboColours.AddRange(colours);
+        void IHasComboColours.AddComboColours(params Color4[] colours) => CustomComboColours.AddRange(colours);
 
         public Dictionary<string, Color4> CustomColours { get; } = new Dictionary<string, Color4>();
 

osu.Game/Tests/Beatmaps/BeatmapConversionTest.cs

@@ -217,7 +217,7 @@ namespace osu.Game.Tests.Beatmaps
 
             protected override Track GetBeatmapTrack() => throw new NotImplementedException();
 
-            protected override ISkin GetSkin() => throw new NotImplementedException();
+            protected internal override ISkin GetSkin() => throw new NotImplementedException();
 
             public override Stream GetStream(string storagePath) => throw new NotImplementedException();
 

osu.Game/Tests/Beatmaps/HitObjectSampleTest.cs

@@ -211,7 +211,7 @@ namespace osu.Game.Tests.Beatmaps
                 this.resources = resources;
             }
 
-            protected override ISkin GetSkin() => new LegacyBeatmapSkin(skinBeatmapInfo, resourceStore, resources);
+            protected internal override ISkin GetSkin() => new LegacyBeatmapSkin(skinBeatmapInfo, resourceStore, resources);
         }
     }
 }

osu.Game/Tests/Beatmaps/LegacyBeatmapSkinColourTest.cs

@@ -92,7 +92,7 @@ namespace osu.Game.Tests.Beatmaps
                 HasColours = hasColours;
             }
 
-            protected override ISkin GetSkin() => new TestBeatmapSkin(BeatmapInfo, HasColours);
+            protected internal override ISkin GetSkin() => new TestBeatmapSkin(BeatmapInfo, HasColours);
         }
 
         protected class TestBeatmapSkin : LegacyBeatmapSkin
@@ -116,7 +116,7 @@ namespace osu.Game.Tests.Beatmaps
             {
                 if (hasColours)
                 {
-                    Configuration.AddComboColours(Colours);
+                    Configuration.CustomComboColours = Colours.ToList();
                     Configuration.CustomColours.Add("HyperDash", HYPER_DASH_COLOUR);
                     Configuration.CustomColours.Add("HyperDashAfterImage", HYPER_DASH_AFTER_IMAGE_COLOUR);
                     Configuration.CustomColours.Add("HyperDashFruit", HYPER_DASH_FRUIT_COLOUR);
@@ -145,7 +145,7 @@ namespace osu.Game.Tests.Beatmaps
             {
                 if (hasCustomColours)
                 {
-                    Configuration.AddComboColours(Colours);
+                    Configuration.CustomComboColours = Colours.ToList();
                     Configuration.CustomColours.Add("HyperDash", HYPER_DASH_COLOUR);
                     Configuration.CustomColours.Add("HyperDashAfterImage", HYPER_DASH_AFTER_IMAGE_COLOUR);
                     Configuration.CustomColours.Add("HyperDashFruit", HYPER_DASH_FRUIT_COLOUR);

osu.Game/Tests/Beatmaps/TestWorkingBeatmap.cs

@@ -37,7 +37,7 @@ namespace osu.Game.Tests.Beatmaps
 
         protected override Storyboard GetStoryboard() => storyboard ?? base.GetStoryboard();
 
-        protected override ISkin GetSkin() => null;
+        protected internal override ISkin GetSkin() => null;
 
         public override Stream GetStream(string storagePath) => null;
 

osu.Game/Tests/Visual/Multiplayer/TestMultiplayerClient.cs

@@ -61,7 +61,7 @@ namespace osu.Game.Tests.Visual.Multiplayer
             return roomUser;
         }
 
-        public void AddNullUser(int userId) => ((IMultiplayerClient)this).UserJoined(new MultiplayerRoomUser(userId));
+        public void AddNullUser() => ((IMultiplayerClient)this).UserJoined(new MultiplayerRoomUser(TestUserLookupCache.NULL_USER_ID));
 
         public void RemoveUser(User user)
         {

osu.Game/Tests/Visual/TestUserLookupCache.cs

@@ -10,10 +10,22 @@ namespace osu.Game.Tests.Visual
 {
     public class TestUserLookupCache : UserLookupCache
     {
-        protected override Task<User> ComputeValueAsync(int lookup, CancellationToken token = default) => Task.FromResult(new User
+        /// <summary>
+        /// A special user ID which <see cref="ComputeValueAsync"/> would return a <see langword="null"/> <see cref="User"/> for.
+        /// As a simulation to what a regular <see cref="UserLookupCache"/> would return in the case of failing to fetch the user.
+        /// </summary>
+        public const int NULL_USER_ID = -1;
+
+        protected override Task<User> ComputeValueAsync(int lookup, CancellationToken token = default)
         {
-            Id = lookup,
-            Username = $"User {lookup}"
-        });
+            if (lookup == NULL_USER_ID)
+                return Task.FromResult((User)null);
+
+            return Task.FromResult(new User
+            {
+                Id = lookup,
+                Username = $"User {lookup}"
+            });
+        }
     }
 }

osu.sln.DotSettings

@@ -304,6 +304,7 @@
 	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/Abbreviations/=AABB/@EntryIndexedValue">AABB</s:String>
 	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/Abbreviations/=API/@EntryIndexedValue">API</s:String>
 	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/Abbreviations/=BPM/@EntryIndexedValue">BPM</s:String>
+	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/Abbreviations/=FPS/@EntryIndexedValue">FPS</s:String>
 	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/Abbreviations/=GC/@EntryIndexedValue">GC</s:String>
 	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/Abbreviations/=GL/@EntryIndexedValue">GL</s:String>
 	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/Abbreviations/=GLSL/@EntryIndexedValue">GLSL</s:String>