Merge branch 'master' into transformers-per-skin

.config/dotnet-tools.json

@@ -2,12 +2,6 @@
   "version": 1,
   "isRoot": true,
   "tools": {
-    "cake.tool": {
-      "version": "0.35.0",
-      "commands": [
-        "dotnet-cake"
-      ]
-    },
     "dotnet-format": {
       "version": "3.1.37601",
       "commands": [
@@ -20,20 +14,20 @@
         "jb"
       ]
     },
-    "nvika": {
-      "version": "2.0.0",
+    "smoogipoo.nvika": {
+      "version": "1.0.1",
       "commands": [
         "nvika"
       ]
     },
     "codefilesanity": {
-      "version": "15.0.0",
+      "version": "0.0.36",
       "commands": [
         "CodeFileSanity"
       ]
     },
     "ppy.localisationanalyser.tools": {
-      "version": "2021.524.0",
+      "version": "2021.608.0",
       "commands": [
         "localisation"
       ]

.github/workflows/ci.yml

@@ -0,0 +1,93 @@
+on: [push, pull_request]
+name: Continuous Integration
+
+jobs:
+  test:
+    name: Test
+    runs-on: ${{matrix.os.fullname}}
+    env:
+      OSU_EXECUTION_MODE: ${{matrix.threadingMode}}
+    strategy:
+       fail-fast: false
+       matrix:
+          os:
+            - { prettyname: Windows, fullname: windows-latest }
+            - { prettyname: macOS, fullname: macos-latest }
+            - { prettyname: Linux, fullname: ubuntu-latest }
+          threadingMode: ['SingleThread', 'MultiThreaded']
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Install .NET 5.0.x
+        uses: actions/setup-dotnet@v1
+        with:
+          dotnet-version: "5.0.x"
+
+      # FIXME: libavformat is not included in Ubuntu. Let's fix that.
+      # https://github.com/ppy/osu-framework/issues/4349
+      # Remove this once https://github.com/actions/virtual-environments/issues/3306 has been resolved.
+      - name: Install libavformat-dev
+        if: ${{matrix.os.fullname == 'ubuntu-latest'}}
+        run: |
+         sudo apt-get update && \
+         sudo apt-get -y install libavformat-dev
+
+      - name: Compile
+        run: dotnet build -c Debug -warnaserror osu.Desktop.slnf
+
+      - name: Test
+        run: dotnet test $pwd/*.Tests/bin/Debug/*/*.Tests.dll --logger "trx;LogFileName=TestResults-${{matrix.os.prettyname}}-${{matrix.threadingMode}}.trx"
+        shell: pwsh
+
+      # Attempt to upload results even if test fails.
+      # https://docs.github.com/en/actions/reference/context-and-expression-syntax-for-github-actions#always
+      - name: Upload Test Results
+        uses: actions/upload-artifact@v2
+        if: ${{ always() }}
+        with:
+          name: osu-test-results-${{matrix.os.prettyname}}-${{matrix.threadingMode}}
+          path: ${{github.workspace}}/TestResults/TestResults-${{matrix.os.prettyname}}-${{matrix.threadingMode}}.trx
+
+  inspect-code:
+    name: Code Quality
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      # FIXME: Tools won't run in .NET 5.0 unless you install 3.1.x LTS side by side.
+      # https://itnext.io/how-to-support-multiple-net-sdks-in-github-actions-workflows-b988daa884e
+      - name: Install .NET 3.1.x LTS
+        uses: actions/setup-dotnet@v1
+        with:
+          dotnet-version: "3.1.x"
+
+      - name: Install .NET 5.0.x
+        uses: actions/setup-dotnet@v1
+        with:
+          dotnet-version: "5.0.x"
+
+      - name: Restore Tools
+        run: dotnet tool restore
+
+      - name: Restore Packages
+        run: dotnet restore
+
+      - name: CodeFileSanity
+        run: |
+          # TODO: Add ignore filters and GitHub Workflow Command Reporting in CFS. That way we don't have to do this workaround.
+          # FIXME: Suppress warnings from templates project
+          dotnet codefilesanity | while read -r line; do
+            echo "::warning::$line"
+          done
+
+      # Temporarily disabled due to test failures, but it won't work anyway until the tool is upgraded.
+      # - name: .NET Format (Dry Run)
+      #   run: dotnet format --dry-run --check
+
+      - name: InspectCode
+        run: dotnet jb inspectcode $(pwd)/osu.Desktop.slnf --output=$(pwd)/inspectcodereport.xml --cachesDir=$(pwd)/inspectcode --verbosity=WARN
+
+      - name: NVika
+        run: dotnet nvika parsereport "${{github.workspace}}/inspectcodereport.xml" --treatwarningsaserrors

.github/workflows/report-nunit.yml

@@ -0,0 +1,31 @@
+# This is a workaround to allow PRs to report their coverage. This will run inside the base repository.
+# See:
+#   * https://github.com/dorny/test-reporter#recommended-setup-for-public-repositories
+#   * https://docs.github.com/en/actions/reference/authentication-in-a-workflow#permissions-for-the-github_token
+name: Annotate CI run with test results
+on:
+  workflow_run:
+    workflows: ["Continuous Integration"]
+    types:
+      - completed
+jobs:
+  annotate:
+    name: Annotate CI run with test results
+    runs-on: ubuntu-latest
+    if: ${{ github.event.workflow_run.conclusion != 'cancelled' }}
+    strategy:
+       fail-fast: false
+       matrix:
+          os:
+            - { prettyname: Windows }
+            - { prettyname: macOS }
+            - { prettyname: Linux }
+          threadingMode: ['SingleThread', 'MultiThreaded']
+    steps:
+      - name: Annotate CI run with test results
+        uses: dorny/test-reporter@v1.4.2
+        with:
+          artifact: osu-test-results-${{matrix.os.prettyname}}-${{matrix.threadingMode}}
+          name: Test Results (${{matrix.os.prettyname}}, ${{matrix.threadingMode}})
+          path: "*.trx"
+          reporter: dotnet-trx

.vscode/launch.json

@@ -113,20 +113,6 @@
             "cwd": "${workspaceRoot}",
             "preLaunchTask": "Build benchmarks",
             "console": "internalConsole"
-        },
-        {
-            "name": "Cake: Debug Script",
-            "type": "coreclr",
-            "request": "launch",
-            "program": "${workspaceRoot}/build/tools/Cake.CoreCLR/0.30.0/Cake.dll",
-            "args": [
-                "${workspaceRoot}/build/build.cake",
-                "--debug",
-                "--verbosity=diagnostic"
-            ],
-            "cwd": "${workspaceRoot}/build",
-            "stopAtEntry": true,
-            "externalConsole": false
         }
     ]
 }

InspectCode.ps1

@@ -1,27 +1,11 @@
-[CmdletBinding()]
-Param(
-    [string]$Target,
-    [string]$Configuration,
-    [ValidateSet("Quiet", "Minimal", "Normal", "Verbose", "Diagnostic")]
-    [string]$Verbosity,
-    [switch]$ShowDescription,
-    [Alias("WhatIf", "Noop")]
-    [switch]$DryRun,
-    [Parameter(Position = 0, Mandatory = $false, ValueFromRemainingArguments = $true)]
-    [string[]]$ScriptArgs
-)
-
-# Build Cake arguments
-$cakeArguments = "";
-if ($Target) { $cakeArguments += "-target=$Target" }
-if ($Configuration) { $cakeArguments += "-configuration=$Configuration" }
-if ($Verbosity) { $cakeArguments += "-verbosity=$Verbosity" }
-if ($ShowDescription) { $cakeArguments += "-showdescription" }
-if ($DryRun) { $cakeArguments += "-dryrun" }
-if ($Experimental) { $cakeArguments += "-experimental" }
-$cakeArguments += $ScriptArgs
-
 dotnet tool restore
-dotnet cake ./build/InspectCode.cake --bootstrap
-dotnet cake ./build/InspectCode.cake $cakeArguments
-exit $LASTEXITCODE
+
+# Temporarily disabled until the tool is upgraded to 5.0.
+  # The version specified in .config/dotnet-tools.json (3.1.37601) won't run on .NET hosts >=5.0.7.
+  # - cmd: dotnet format --dry-run --check
+
+dotnet CodeFileSanity
+dotnet jb inspectcode "osu.Desktop.slnf" --output="inspectcodereport.xml" --caches-home="inspectcode" --verbosity=WARN
+dotnet nvika parsereport "inspectcodereport.xml" --treatwarningsaserrors
+
+exit $LASTEXITCODE

InspectCode.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+dotnet tool restore
+dotnet CodeFileSanity
+dotnet jb inspectcode "osu.Desktop.slnf" --output="inspectcodereport.xml" --caches-home="inspectcode" --verbosity=WARN
+dotnet nvika parsereport "inspectcodereport.xml" --treatwarningsaserrors

appveyor.yml

@@ -1,24 +1,27 @@
 clone_depth: 1
 version: '{branch}-{build}'
 image: Visual Studio 2019
+cache:
+  - '%LOCALAPPDATA%\NuGet\v3-cache -> appveyor.yml'
+
 dotnet_csproj:
   patch: true
   file: 'osu.Game\osu.Game.csproj' # Use wildcard when it's able to exclude Xamarin projects
   version: '0.0.{build}'
-cache:
-  - '%LOCALAPPDATA%\NuGet\v3-cache -> appveyor.yml'
+
 before_build:
-  - ps: dotnet --info # Useful when version mismatch between CI and local
-  - ps: nuget restore -verbosity quiet # Only nuget.exe knows both new (.NET Core) and old (Xamarin) projects
+  - cmd: dotnet --info # Useful when version mismatch between CI and local
+  - cmd: nuget restore -verbosity quiet # Only nuget.exe knows both new (.NET Core) and old (Xamarin) projects
+
 build:
   project: osu.sln
   parallel: true
   verbosity: minimal
   publish_nuget: true
+
 after_build:
-  - ps: dotnet tool restore
-  - ps: dotnet format --dry-run --check
   - ps: .\InspectCode.ps1
+
 test:
   assemblies:
     except:

build/Desktop.proj

@@ -1,17 +0,0 @@
-<Project Sdk="Microsoft.Build.Traversal">
-  <ItemGroup>
-    <ProjectReference Include="..\osu.Desktop\osu.Desktop.csproj" />
-    <ProjectReference Include="..\osu.Game.Rulesets.Catch.Tests\osu.Game.Rulesets.Catch.Tests.csproj" />
-    <ProjectReference Include="..\osu.Game.Rulesets.Catch\osu.Game.Rulesets.Catch.csproj" />
-    <ProjectReference Include="..\osu.Game.Rulesets.Mania.Tests\osu.Game.Rulesets.Mania.Tests.csproj" />
-    <ProjectReference Include="..\osu.Game.Rulesets.Mania\osu.Game.Rulesets.Mania.csproj" />
-    <ProjectReference Include="..\osu.Game.Rulesets.Osu.Tests\osu.Game.Rulesets.Osu.Tests.csproj" />
-    <ProjectReference Include="..\osu.Game.Rulesets.Osu\osu.Game.Rulesets.Osu.csproj" />
-    <ProjectReference Include="..\osu.Game.Rulesets.Taiko.Tests\osu.Game.Rulesets.Taiko.Tests.csproj" />
-    <ProjectReference Include="..\osu.Game.Rulesets.Taiko\osu.Game.Rulesets.Taiko.csproj" />
-    <ProjectReference Include="..\osu.Game.Tests\osu.Game.Tests.csproj" />
-    <ProjectReference Include="..\osu.Game.Tournament.Tests\osu.Game.Tournament.Tests.csproj" />
-    <ProjectReference Include="..\osu.Game.Tournament\osu.Game.Tournament.csproj" />
-    <ProjectReference Include="..\osu.Game\osu.Game.csproj" />
-  </ItemGroup>
-</Project>

build/InspectCode.cake

@@ -1,41 +0,0 @@
-#addin "nuget:?package=CodeFileSanity&version=0.0.36"
-
-///////////////////////////////////////////////////////////////////////////////
-// ARGUMENTS
-///////////////////////////////////////////////////////////////////////////////
-
-var target = Argument("target", "CodeAnalysis");
-var configuration = Argument("configuration", "Release");
-
-var rootDirectory = new DirectoryPath("..");
-var sln = rootDirectory.CombineWithFilePath("osu.sln");
-var desktopSlnf = rootDirectory.CombineWithFilePath("osu.Desktop.slnf");
-
-///////////////////////////////////////////////////////////////////////////////
-// TASKS
-///////////////////////////////////////////////////////////////////////////////
-
-Task("InspectCode")
-    .Does(() => {
-        var inspectcodereport = "inspectcodereport.xml";
-        var cacheDir = "inspectcode";
-        var verbosity = AppVeyor.IsRunningOnAppVeyor ? "WARN" : "INFO"; // Don't flood CI output
-
-        DotNetCoreTool(rootDirectory.FullPath,
-            "jb", $@"inspectcode ""{desktopSlnf}"" --output=""{inspectcodereport}"" --caches-home=""{cacheDir}"" --verbosity={verbosity}");
-        DotNetCoreTool(rootDirectory.FullPath, "nvika", $@"parsereport ""{inspectcodereport}"" --treatwarningsaserrors");
-    });
-
-Task("CodeFileSanity")
-    .Does(() => {
-        ValidateCodeSanity(new ValidateCodeSanitySettings {
-            RootDirectory = rootDirectory.FullPath,
-            IsAppveyorBuild = AppVeyor.IsRunningOnAppVeyor
-        });
-    });
-
-Task("CodeAnalysis")
-    .IsDependentOn("CodeFileSanity")
-    .IsDependentOn("InspectCode");
-
-RunTarget(target);

cake.config

@@ -1,5 +0,0 @@
-
-[Nuget]
-Source=https://api.nuget.org/v3/index.json
-UseInProcessClient=true
-LoadDependencies=true

osu.Android.props

@@ -51,7 +51,7 @@
     <Reference Include="Java.Interop" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="ppy.osu.Game.Resources" Version="2021.525.0" />
-    <PackageReference Include="ppy.osu.Framework.Android" Version="2021.609.0" />
+    <PackageReference Include="ppy.osu.Game.Resources" Version="2021.614.0" />
+    <PackageReference Include="ppy.osu.Framework.Android" Version="2021.614.0" />
   </ItemGroup>
 </Project>

osu.Game.Rulesets.Catch.Tests/Resources/old-skin/skin.ini

@@ -0,0 +1,2 @@
+[General]
+// no version specified means v1

osu.Game.Rulesets.Catch/Difficulty/CatchDifficultyAttributes.cs

@@ -7,6 +7,6 @@ namespace osu.Game.Rulesets.Catch.Difficulty
 {
     public class CatchDifficultyAttributes : DifficultyAttributes
     {
-        public double ApproachRate;
+        public double ApproachRate { get; set; }
     }
 }

osu.Game.Rulesets.Catch/Mods/CatchModRelax.cs

@@ -33,13 +33,13 @@ namespace osu.Game.Rulesets.Catch.Mods
 
         private class MouseInputHelper : Drawable, IKeyBindingHandler<CatchAction>, IRequireHighFrequencyMousePosition
         {
-            private readonly Catcher catcher;
+            private readonly CatcherArea catcherArea;
 
             public override bool ReceivePositionalInputAt(Vector2 screenSpacePos) => true;
 
             public MouseInputHelper(CatchPlayfield playfield)
             {
-                catcher = playfield.CatcherArea.MovableCatcher;
+                catcherArea = playfield.CatcherArea;
                 RelativeSizeAxes = Axes.Both;
             }
 
@@ -52,7 +52,7 @@ namespace osu.Game.Rulesets.Catch.Mods
 
             protected override bool OnMouseMove(MouseMoveEvent e)
             {
-                catcher.UpdatePosition(e.MousePosition.X / DrawSize.X * CatchPlayfield.WIDTH);
+                catcherArea.SetCatcherPosition(e.MousePosition.X / DrawSize.X * CatchPlayfield.WIDTH);
                 return base.OnMouseMove(e);
             }
         }

osu.Game.Rulesets.Catch/UI/Catcher.cs

@@ -10,7 +10,6 @@ using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Pooling;
 using osu.Framework.Graphics.Textures;
-using osu.Framework.Input.Bindings;
 using osu.Framework.Utils;
 using osu.Game.Beatmaps;
 using osu.Game.Configuration;
@@ -26,7 +25,7 @@ using osuTK.Graphics;
 
 namespace osu.Game.Rulesets.Catch.UI
 {
-    public class Catcher : SkinReloadableDrawable, IKeyBindingHandler<CatchAction>
+    public class Catcher : SkinReloadableDrawable
     {
         /// <summary>
         /// The default colour used to tint hyper-dash fruit, along with the moving catcher, its trail
@@ -54,6 +53,11 @@ namespace osu.Game.Rulesets.Catch.UI
         /// </summary>
         public const double BASE_SPEED = 1.0;
 
+        /// <summary>
+        /// The current speed of the catcher.
+        /// </summary>
+        public double Speed => (Dashing ? 1 : 0.5) * BASE_SPEED * hyperDashModifier;
+
         /// <summary>
         /// The amount by which caught fruit should be offset from the plate surface to make them look visually "caught".
         /// </summary>
@@ -96,7 +100,7 @@ namespace osu.Game.Rulesets.Catch.UI
         public bool Dashing
         {
             get => dashing;
-            protected set
+            set
             {
                 if (value == dashing) return;
 
@@ -106,6 +110,12 @@ namespace osu.Game.Rulesets.Catch.UI
             }
         }
 
+        public Direction VisualDirection
+        {
+            get => Scale.X > 0 ? Direction.Right : Direction.Left;
+            set => Scale = new Vector2((value == Direction.Right ? 1 : -1) * Math.Abs(Scale.X), Scale.Y);
+        }
+
         /// <summary>
         /// Width of the area that can be used to attempt catches during gameplay.
         /// </summary>
@@ -116,8 +126,6 @@ namespace osu.Game.Rulesets.Catch.UI
         private Color4 hyperDashColour = DEFAULT_HYPER_DASH_COLOUR;
         private Color4 hyperDashEndGlowColour = DEFAULT_HYPER_DASH_COLOUR;
 
-        private int currentDirection;
-
         private double hyperDashModifier = 1;
         private int hyperDashDirection;
         private float hyperDashTargetPosition;
@@ -315,55 +323,6 @@ namespace osu.Game.Rulesets.Catch.UI
             }
         }
 
-        public void UpdatePosition(float position)
-        {
-            position = Math.Clamp(position, 0, CatchPlayfield.WIDTH);
-
-            if (position == X)
-                return;
-
-            Scale = new Vector2(Math.Abs(Scale.X) * (position > X ? 1 : -1), Scale.Y);
-            X = position;
-        }
-
-        public bool OnPressed(CatchAction action)
-        {
-            switch (action)
-            {
-                case CatchAction.MoveLeft:
-                    currentDirection--;
-                    return true;
-
-                case CatchAction.MoveRight:
-                    currentDirection++;
-                    return true;
-
-                case CatchAction.Dash:
-                    Dashing = true;
-                    return true;
-            }
-
-            return false;
-        }
-
-        public void OnReleased(CatchAction action)
-        {
-            switch (action)
-            {
-                case CatchAction.MoveLeft:
-                    currentDirection++;
-                    break;
-
-                case CatchAction.MoveRight:
-                    currentDirection--;
-                    break;
-
-                case CatchAction.Dash:
-                    Dashing = false;
-                    break;
-            }
-        }
-
         /// <summary>
         /// Drop any fruit off the plate.
         /// </summary>
@@ -405,15 +364,6 @@ namespace osu.Game.Rulesets.Catch.UI
         {
             base.Update();
 
-            if (currentDirection == 0) return;
-
-            var direction = Math.Sign(currentDirection);
-
-            var dashModifier = Dashing ? 1 : 0.5;
-            var speed = BASE_SPEED * dashModifier * hyperDashModifier;
-
-            UpdatePosition((float)(X + direction * Clock.ElapsedFrameTime * speed));
-
             // Correct overshooting.
             if ((hyperDashDirection > 0 && hyperDashTargetPosition < X) ||
                 (hyperDashDirection < 0 && hyperDashTargetPosition > X))

osu.Game.Rulesets.Catch/UI/CatcherArea.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;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
+using osu.Framework.Input.Bindings;
 using osu.Game.Beatmaps;
 using osu.Game.Rulesets.Catch.Judgements;
 using osu.Game.Rulesets.Catch.Objects.Drawables;
@@ -14,13 +16,20 @@ using osuTK;
 
 namespace osu.Game.Rulesets.Catch.UI
 {
-    public class CatcherArea : Container
+    public class CatcherArea : Container, IKeyBindingHandler<CatchAction>
     {
         public const float CATCHER_SIZE = 106.75f;
 
         public readonly Catcher MovableCatcher;
         private readonly CatchComboDisplay comboDisplay;
 
+        /// <summary>
+        /// <c>-1</c> when only left button is pressed.
+        /// <c>1</c> when only right button is pressed.
+        /// <c>0</c> when none or both left and right buttons are pressed.
+        /// </summary>
+        private int currentDirection;
+
         public CatcherArea(Container<CaughtObject> droppedObjectContainer, BeatmapDifficulty difficulty = null)
         {
             Size = new Vector2(CatchPlayfield.WIDTH, CATCHER_SIZE);
@@ -63,16 +72,73 @@ namespace osu.Game.Rulesets.Catch.UI
             MovableCatcher.OnRevertResult(hitObject, result);
         }
 
+        protected override void Update()
+        {
+            base.Update();
+
+            var replayState = (GetContainingInputManager().CurrentState as RulesetInputManagerInputState<CatchAction>)?.LastReplayState as CatchFramedReplayInputHandler.CatchReplayState;
+
+            SetCatcherPosition(
+                replayState?.CatcherX ??
+                (float)(MovableCatcher.X + MovableCatcher.Speed * currentDirection * Clock.ElapsedFrameTime));
+        }
+
         protected override void UpdateAfterChildren()
         {
             base.UpdateAfterChildren();
 
-            var state = (GetContainingInputManager().CurrentState as RulesetInputManagerInputState<CatchAction>)?.LastReplayState as CatchFramedReplayInputHandler.CatchReplayState;
-
-            if (state?.CatcherX != null)
-                MovableCatcher.X = state.CatcherX.Value;
-
             comboDisplay.X = MovableCatcher.X;
         }
+
+        public void SetCatcherPosition(float X)
+        {
+            float lastPosition = MovableCatcher.X;
+            float newPosition = Math.Clamp(X, 0, CatchPlayfield.WIDTH);
+
+            MovableCatcher.X = newPosition;
+
+            if (lastPosition < newPosition)
+                MovableCatcher.VisualDirection = Direction.Right;
+            else if (lastPosition > newPosition)
+                MovableCatcher.VisualDirection = Direction.Left;
+        }
+
+        public bool OnPressed(CatchAction action)
+        {
+            switch (action)
+            {
+                case CatchAction.MoveLeft:
+                    currentDirection--;
+                    return true;
+
+                case CatchAction.MoveRight:
+                    currentDirection++;
+                    return true;
+
+                case CatchAction.Dash:
+                    MovableCatcher.Dashing = true;
+                    return true;
+            }
+
+            return false;
+        }
+
+        public void OnReleased(CatchAction action)
+        {
+            switch (action)
+            {
+                case CatchAction.MoveLeft:
+                    currentDirection++;
+                    break;
+
+                case CatchAction.MoveRight:
+                    currentDirection--;
+                    break;
+
+                case CatchAction.Dash:
+                    MovableCatcher.Dashing = false;
+                    break;
+            }
+        }
     }
 }

osu.Game.Rulesets.Catch/UI/Direction.cs

@@ -0,0 +1,11 @@
+// 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.
+
+namespace osu.Game.Rulesets.Catch.UI
+{
+    public enum Direction
+    {
+        Right = 1,
+        Left = -1
+    }
+}

osu.Game.Rulesets.Mania/Difficulty/ManiaDifficultyAttributes.cs

@@ -7,7 +7,7 @@ namespace osu.Game.Rulesets.Mania.Difficulty
 {
     public class ManiaDifficultyAttributes : DifficultyAttributes
     {
-        public double GreatHitWindow;
-        public double ScoreMultiplier;
+        public double GreatHitWindow { get; set; }
+        public double ScoreMultiplier { get; set; }
     }
 }

osu.Game.Rulesets.Osu.Tests/Resources/old-skin/skin.ini

@@ -1,6 +1,6 @@
 [General]
-Version: 1.0
+// no version specified means v1
 
 [Fonts]
 HitCircleOverlap: 3
-ScoreOverlap: 3
+ScoreOverlap: 3

osu.Game.Rulesets.Osu/Difficulty/OsuDifficultyAttributes.cs

@@ -7,11 +7,11 @@ namespace osu.Game.Rulesets.Osu.Difficulty
 {
     public class OsuDifficultyAttributes : DifficultyAttributes
     {
-        public double AimStrain;
-        public double SpeedStrain;
-        public double ApproachRate;
-        public double OverallDifficulty;
-        public int HitCircleCount;
-        public int SpinnerCount;
+        public double AimStrain { get; set; }
+        public double SpeedStrain { get; set; }
+        public double ApproachRate { get; set; }
+        public double OverallDifficulty { get; set; }
+        public int HitCircleCount { get; set; }
+        public int SpinnerCount { get; set; }
     }
 }

osu.Game.Rulesets.Osu/Skinning/Legacy/LegacyOldStyleSpinner.cs

@@ -12,6 +12,7 @@ using osu.Game.Rulesets.Osu.Objects;
 using osu.Game.Rulesets.Osu.Objects.Drawables;
 using osu.Game.Skinning;
 using osuTK;
+using osuTK.Graphics;
 
 namespace osu.Game.Rulesets.Osu.Skinning.Legacy
 {
@@ -40,6 +41,7 @@ namespace osu.Game.Rulesets.Osu.Skinning.Legacy
                     Anchor = Anchor.TopCentre,
                     Origin = Anchor.Centre,
                     Texture = source.GetTexture("spinner-background"),
+                    Colour = source.GetConfig<OsuSkinColour, Color4>(OsuSkinColour.SpinnerBackground)?.Value ?? new Color4(100, 100, 100, 255),
                     Scale = new Vector2(SPRITE_SCALE),
                     Y = SPINNER_Y_CENTRE,
                 },

osu.Game.Rulesets.Osu/Skinning/OsuSkinColour.cs

@@ -7,6 +7,7 @@ namespace osu.Game.Rulesets.Osu.Skinning
     {
         SliderTrackOverride,
         SliderBorder,
-        SliderBall
+        SliderBall,
+        SpinnerBackground,
     }
 }

osu.Game.Rulesets.Taiko/Difficulty/TaikoDifficultyAttributes.cs

@@ -7,10 +7,10 @@ namespace osu.Game.Rulesets.Taiko.Difficulty
 {
     public class TaikoDifficultyAttributes : DifficultyAttributes
     {
-        public double StaminaStrain;
-        public double RhythmStrain;
-        public double ColourStrain;
-        public double ApproachRate;
-        public double GreatHitWindow;
+        public double StaminaStrain { get; set; }
+        public double RhythmStrain { get; set; }
+        public double ColourStrain { get; set; }
+        public double ApproachRate { get; set; }
+        public double GreatHitWindow { get; set; }
     }
 }

osu.Game.Rulesets.Taiko/Objects/Hit.cs

@@ -3,14 +3,19 @@
 
 using System.Linq;
 using osu.Framework.Bindables;
+using osu.Framework.Extensions.Color4Extensions;
 using osu.Game.Audio;
+using osu.Game.Rulesets.Objects.Types;
+using osuTK.Graphics;
 
 namespace osu.Game.Rulesets.Taiko.Objects
 {
-    public class Hit : TaikoStrongableHitObject
+    public class Hit : TaikoStrongableHitObject, IHasDisplayColour
     {
         public readonly Bindable<HitType> TypeBindable = new Bindable<HitType>();
 
+        public Bindable<Color4> DisplayColour { get; } = new Bindable<Color4>(COLOUR_CENTRE);
+
         /// <summary>
         /// The <see cref="HitType"/> that actuates this <see cref="Hit"/>.
         /// </summary>
@@ -20,9 +25,17 @@ namespace osu.Game.Rulesets.Taiko.Objects
             set => TypeBindable.Value = value;
         }
 
+        public static readonly Color4 COLOUR_CENTRE = Color4Extensions.FromHex(@"bb1177");
+        public static readonly Color4 COLOUR_RIM = Color4Extensions.FromHex(@"2299bb");
+
         public Hit()
         {
-            TypeBindable.BindValueChanged(_ => updateSamplesFromType());
+            TypeBindable.BindValueChanged(_ =>
+            {
+                updateSamplesFromType();
+                DisplayColour.Value = Type == HitType.Centre ? COLOUR_CENTRE : COLOUR_RIM;
+            });
+
             SamplesBindable.BindCollectionChanged((_, __) => updateTypeFromSamples());
         }
 

osu.Game.Rulesets.Taiko/Skinning/Default/CentreHitCirclePiece.cs

@@ -6,6 +6,7 @@ using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Shapes;
 using osu.Game.Graphics;
+using osu.Game.Rulesets.Taiko.Objects;
 using osuTK;
 
 namespace osu.Game.Rulesets.Taiko.Skinning.Default
@@ -20,7 +21,7 @@ namespace osu.Game.Rulesets.Taiko.Skinning.Default
         [BackgroundDependencyLoader]
         private void load(OsuColour colours)
         {
-            AccentColour = colours.PinkDarker;
+            AccentColour = Hit.COLOUR_CENTRE;
         }
 
         /// <summary>

osu.Game.Rulesets.Taiko/Skinning/Default/RimHitCirclePiece.cs

@@ -6,6 +6,7 @@ using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Shapes;
 using osu.Game.Graphics;
+using osu.Game.Rulesets.Taiko.Objects;
 using osuTK;
 using osuTK.Graphics;
 
@@ -21,7 +22,7 @@ namespace osu.Game.Rulesets.Taiko.Skinning.Default
         [BackgroundDependencyLoader]
         private void load(OsuColour colours)
         {
-            AccentColour = colours.BlueDarker;
+            AccentColour = Hit.COLOUR_RIM;
         }
 
         /// <summary>

osu.Game.Tests/Collections/IO/ImportCollectionsTest.cs

@@ -113,7 +113,6 @@ namespace osu.Game.Tests.Collections.IO
                         await importCollectionsFromStream(osu, ms);
                     }
 
-                    Assert.That(host.UpdateThread.Running, Is.True);
                     Assert.That(exceptionThrown, Is.False);
                     Assert.That(osu.CollectionManager.Collections.Count, Is.EqualTo(0));
                 }

osu.Game.Tests/NonVisual/Filtering/FilterQueryParserTest.cs

@@ -33,10 +33,11 @@ namespace osu.Game.Tests.NonVisual.Filtering
          * outside of the range.
          */
 
-        [Test]
-        public void TestApplyStarQueries()
+        [TestCase("star")]
+        [TestCase("stars")]
+        public void TestApplyStarQueries(string variant)
         {
-            const string query = "stars<4 easy";
+            string query = $"{variant}<4 easy";
             var filterCriteria = new FilterCriteria();
             FilterQueryParser.ApplyQueries(filterCriteria, query);
             Assert.AreEqual("easy", filterCriteria.SearchText.Trim());

osu.Game.Tests/Resources/old-skin/skin.ini

@@ -1,2 +1,2 @@
 [General]
-Version: 1.0
+// no version specified means v1

osu.Game.Tests/Visual/Background/TestSceneSeasonalBackgroundLoader.cs

@@ -161,15 +161,18 @@ namespace osu.Game.Tests.Visual.Background
 
         private void loadNextBackground()
         {
+            SeasonalBackground previousBackground = null;
             SeasonalBackground background = null;
 
             AddStep("create next background", () =>
             {
+                previousBackground = (SeasonalBackground)backgroundContainer.SingleOrDefault();
                 background = backgroundLoader.LoadNextBackground();
                 LoadComponentAsync(background, bg => backgroundContainer.Child = bg);
             });
 
             AddUntilStep("background loaded", () => background.IsLoaded);
+            AddAssert("background is different", () => !background.Equals(previousBackground));
         }
 
         private void assertAnyBackground()

osu.Game.Tests/Visual/Editing/TestSceneMetadataSection.cs

@@ -0,0 +1,144 @@
+// 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 NUnit.Framework;
+using osu.Framework.Allocation;
+using osu.Game.Beatmaps;
+using osu.Game.Graphics.UserInterfaceV2;
+using osu.Game.Screens.Edit;
+using osu.Game.Screens.Edit.Setup;
+
+namespace osu.Game.Tests.Visual.Editing
+{
+    public class TestSceneMetadataSection : OsuTestScene
+    {
+        [Cached]
+        private EditorBeatmap editorBeatmap = new EditorBeatmap(new Beatmap());
+
+        private TestMetadataSection metadataSection;
+
+        [Test]
+        public void TestMinimalMetadata()
+        {
+            AddStep("set metadata", () =>
+            {
+                editorBeatmap.Metadata.Artist = "Example Artist";
+                editorBeatmap.Metadata.ArtistUnicode = null;
+
+                editorBeatmap.Metadata.Title = "Example Title";
+                editorBeatmap.Metadata.TitleUnicode = null;
+            });
+
+            createSection();
+
+            assertArtist("Example Artist");
+            assertRomanisedArtist("Example Artist", false);
+
+            assertTitle("Example Title");
+            assertRomanisedTitle("Example Title", false);
+        }
+
+        [Test]
+        public void TestInitialisationFromNonRomanisedVariant()
+        {
+            AddStep("set metadata", () =>
+            {
+                editorBeatmap.Metadata.ArtistUnicode = "＊なみりん";
+                editorBeatmap.Metadata.Artist = null;
+
+                editorBeatmap.Metadata.TitleUnicode = "コイシテイク・プラネット";
+                editorBeatmap.Metadata.Title = null;
+            });
+
+            createSection();
+
+            assertArtist("＊なみりん");
+            assertRomanisedArtist(string.Empty, true);
+
+            assertTitle("コイシテイク・プラネット");
+            assertRomanisedTitle(string.Empty, true);
+        }
+
+        [Test]
+        public void TestInitialisationPreservesOriginalValues()
+        {
+            AddStep("set metadata", () =>
+            {
+                editorBeatmap.Metadata.ArtistUnicode = "＊なみりん";
+                editorBeatmap.Metadata.Artist = "*namirin";
+
+                editorBeatmap.Metadata.TitleUnicode = "コイシテイク・プラネット";
+                editorBeatmap.Metadata.Title = "Koishiteiku Planet";
+            });
+
+            createSection();
+
+            assertArtist("＊なみりん");
+            assertRomanisedArtist("*namirin", true);
+
+            assertTitle("コイシテイク・プラネット");
+            assertRomanisedTitle("Koishiteiku Planet", true);
+        }
+
+        [Test]
+        public void TestValueTransfer()
+        {
+            AddStep("set metadata", () =>
+            {
+                editorBeatmap.Metadata.ArtistUnicode = "＊なみりん";
+                editorBeatmap.Metadata.Artist = null;
+
+                editorBeatmap.Metadata.TitleUnicode = "コイシテイク・プラネット";
+                editorBeatmap.Metadata.Title = null;
+            });
+
+            createSection();
+
+            AddStep("set romanised artist name", () => metadataSection.ArtistTextBox.Current.Value = "*namirin");
+            assertArtist("*namirin");
+            assertRomanisedArtist("*namirin", false);
+
+            AddStep("set native artist name", () => metadataSection.ArtistTextBox.Current.Value = "＊なみりん");
+            assertArtist("＊なみりん");
+            assertRomanisedArtist("*namirin", true);
+
+            AddStep("set romanised title", () => metadataSection.TitleTextBox.Current.Value = "Hitokoto no kyori");
+            assertTitle("Hitokoto no kyori");
+            assertRomanisedTitle("Hitokoto no kyori", false);
+
+            AddStep("set native title", () => metadataSection.TitleTextBox.Current.Value = "ヒトコトの距離");
+            assertTitle("ヒトコトの距離");
+            assertRomanisedTitle("Hitokoto no kyori", true);
+        }
+
+        private void createSection()
+            => AddStep("create metadata section", () => Child = metadataSection = new TestMetadataSection());
+
+        private void assertArtist(string expected)
+            => AddAssert($"artist is {expected}", () => metadataSection.ArtistTextBox.Current.Value == expected);
+
+        private void assertRomanisedArtist(string expected, bool editable)
+        {
+            AddAssert($"romanised artist is {expected}", () => metadataSection.RomanisedArtistTextBox.Current.Value == expected);
+            AddAssert($"romanised artist is {(editable ? "" : "not ")}editable", () => metadataSection.RomanisedArtistTextBox.ReadOnly == !editable);
+        }
+
+        private void assertTitle(string expected)
+            => AddAssert($"title is {expected}", () => metadataSection.TitleTextBox.Current.Value == expected);
+
+        private void assertRomanisedTitle(string expected, bool editable)
+        {
+            AddAssert($"romanised title is {expected}", () => metadataSection.RomanisedTitleTextBox.Current.Value == expected);
+            AddAssert($"romanised title is {(editable ? "" : "not ")}editable", () => metadataSection.RomanisedTitleTextBox.ReadOnly == !editable);
+        }
+
+        private class TestMetadataSection : MetadataSection
+        {
+            public new LabelledTextBox ArtistTextBox => base.ArtistTextBox;
+            public new LabelledTextBox RomanisedArtistTextBox => base.RomanisedArtistTextBox;
+
+            public new LabelledTextBox TitleTextBox => base.TitleTextBox;
+            public new LabelledTextBox RomanisedTitleTextBox => base.RomanisedTitleTextBox;
+        }
+    }
+}

osu.Game.Tests/Visual/Online/TestSceneMessageNotifier.cs

@@ -0,0 +1,240 @@
+// 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;
+using osu.Framework.Bindables;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Testing;
+using osu.Game.Online.API;
+using osu.Game.Online.API.Requests;
+using osu.Game.Online.API.Requests.Responses;
+using osu.Game.Online.Chat;
+using osu.Game.Overlays;
+using osu.Game.Overlays.Notifications;
+using osu.Game.Users;
+using osuTK.Input;
+
+namespace osu.Game.Tests.Visual.Online
+{
+    public class TestSceneMessageNotifier : OsuManualInputManagerTestScene
+    {
+        private User friend;
+        private Channel publicChannel;
+        private Channel privateMessageChannel;
+        private TestContainer testContainer;
+
+        private int messageIdCounter;
+
+        [SetUp]
+        public void Setup()
+        {
+            if (API is DummyAPIAccess daa)
+            {
+                daa.HandleRequest = dummyAPIHandleRequest;
+            }
+
+            friend = new User { Id = 0, Username = "Friend" };
+            publicChannel = new Channel { Id = 1, Name = "osu" };
+            privateMessageChannel = new Channel(friend) { Id = 2, Name = friend.Username, Type = ChannelType.PM };
+
+            Schedule(() =>
+            {
+                Child = testContainer = new TestContainer(new[] { publicChannel, privateMessageChannel })
+                {
+                    RelativeSizeAxes = Axes.Both,
+                };
+
+                testContainer.ChatOverlay.Show();
+            });
+        }
+
+        private bool dummyAPIHandleRequest(APIRequest request)
+        {
+            switch (request)
+            {
+                case GetMessagesRequest messagesRequest:
+                    messagesRequest.TriggerSuccess(new List<Message>(0));
+                    return true;
+
+                case CreateChannelRequest createChannelRequest:
+                    var apiChatChannel = new APIChatChannel
+                    {
+                        RecentMessages = new List<Message>(0),
+                        ChannelID = (int)createChannelRequest.Channel.Id
+                    };
+                    createChannelRequest.TriggerSuccess(apiChatChannel);
+                    return true;
+
+                case ListChannelsRequest listChannelsRequest:
+                    listChannelsRequest.TriggerSuccess(new List<Channel>(1) { publicChannel });
+                    return true;
+
+                case GetUpdatesRequest updatesRequest:
+                    updatesRequest.TriggerSuccess(new GetUpdatesResponse
+                    {
+                        Messages = new List<Message>(0),
+                        Presence = new List<Channel>(0)
+                    });
+                    return true;
+
+                case JoinChannelRequest joinChannelRequest:
+                    joinChannelRequest.TriggerSuccess();
+                    return true;
+
+                default:
+                    return false;
+            }
+        }
+
+        [Test]
+        public void TestPublicChannelMention()
+        {
+            AddStep("switch to PMs", () => testContainer.ChannelManager.CurrentChannel.Value = privateMessageChannel);
+
+            AddStep("receive public message", () => receiveMessage(friend, publicChannel, "Hello everyone"));
+            AddAssert("no notifications fired", () => testContainer.NotificationOverlay.UnreadCount.Value == 0);
+
+            AddStep("receive message containing mention", () => receiveMessage(friend, publicChannel, $"Hello {API.LocalUser.Value.Username.ToLowerInvariant()}!"));
+            AddAssert("1 notification fired", () => testContainer.NotificationOverlay.UnreadCount.Value == 1);
+
+            AddStep("open notification overlay", () => testContainer.NotificationOverlay.Show());
+            AddStep("click notification", clickNotification<MessageNotifier.MentionNotification>);
+
+            AddAssert("chat overlay is open", () => testContainer.ChatOverlay.State.Value == Visibility.Visible);
+            AddAssert("public channel is selected", () => testContainer.ChannelManager.CurrentChannel.Value == publicChannel);
+        }
+
+        [Test]
+        public void TestPrivateMessageNotification()
+        {
+            AddStep("switch to public channel", () => testContainer.ChannelManager.CurrentChannel.Value = publicChannel);
+
+            AddStep("receive PM", () => receiveMessage(friend, privateMessageChannel, $"Hello {API.LocalUser.Value.Username}"));
+            AddAssert("1 notification fired", () => testContainer.NotificationOverlay.UnreadCount.Value == 1);
+
+            AddStep("open notification overlay", () => testContainer.NotificationOverlay.Show());
+            AddStep("click notification", clickNotification<MessageNotifier.PrivateMessageNotification>);
+
+            AddAssert("chat overlay is open", () => testContainer.ChatOverlay.State.Value == Visibility.Visible);
+            AddAssert("PM channel is selected", () => testContainer.ChannelManager.CurrentChannel.Value == privateMessageChannel);
+        }
+
+        [Test]
+        public void TestNoNotificationWhenPMChannelOpen()
+        {
+            AddStep("switch to PMs", () => testContainer.ChannelManager.CurrentChannel.Value = privateMessageChannel);
+
+            AddStep("receive PM", () => receiveMessage(friend, privateMessageChannel, "you're reading this, right?"));
+
+            AddAssert("no notifications fired", () => testContainer.NotificationOverlay.UnreadCount.Value == 0);
+        }
+
+        [Test]
+        public void TestNoNotificationWhenMentionedInOpenPublicChannel()
+        {
+            AddStep("switch to public channel", () => testContainer.ChannelManager.CurrentChannel.Value = publicChannel);
+
+            AddStep("receive mention", () => receiveMessage(friend, publicChannel, $"{API.LocalUser.Value.Username.ToUpperInvariant()} has been reading this"));
+
+            AddAssert("no notifications fired", () => testContainer.NotificationOverlay.UnreadCount.Value == 0);
+        }
+
+        [Test]
+        public void TestNoNotificationOnSelfMention()
+        {
+            AddStep("switch to PM channel", () => testContainer.ChannelManager.CurrentChannel.Value = privateMessageChannel);
+
+            AddStep("receive self-mention", () => receiveMessage(API.LocalUser.Value, publicChannel, $"my name is {API.LocalUser.Value.Username}"));
+
+            AddAssert("no notifications fired", () => testContainer.NotificationOverlay.UnreadCount.Value == 0);
+        }
+
+        [Test]
+        public void TestNoNotificationOnPMFromSelf()
+        {
+            AddStep("switch to public channel", () => testContainer.ChannelManager.CurrentChannel.Value = publicChannel);
+
+            AddStep("receive PM from self", () => receiveMessage(API.LocalUser.Value, privateMessageChannel, "hey hey"));
+
+            AddAssert("no notifications fired", () => testContainer.NotificationOverlay.UnreadCount.Value == 0);
+        }
+
+        [Test]
+        public void TestNotificationsNotFiredTwice()
+        {
+            AddStep("switch to public channel", () => testContainer.ChannelManager.CurrentChannel.Value = publicChannel);
+
+            AddStep("receive same PM twice", () =>
+            {
+                var message = createMessage(friend, privateMessageChannel, "hey hey");
+                privateMessageChannel.AddNewMessages(message, message);
+            });
+
+            AddStep("open notification overlay", () => testContainer.NotificationOverlay.Show());
+            AddAssert("1 notification fired", () => testContainer.NotificationOverlay.UnreadCount.Value == 1);
+        }
+
+        private void receiveMessage(User sender, Channel channel, string content) => channel.AddNewMessages(createMessage(sender, channel, content));
+
+        private Message createMessage(User sender, Channel channel, string content) => new Message(messageIdCounter++)
+        {
+            Content = content,
+            Sender = sender,
+            ChannelId = channel.Id
+        };
+
+        private void clickNotification<T>() where T : Notification
+        {
+            var notification = testContainer.NotificationOverlay.ChildrenOfType<T>().Single();
+
+            InputManager.MoveMouseTo(notification);
+            InputManager.Click(MouseButton.Left);
+        }
+
+        private class TestContainer : Container
+        {
+            [Cached]
+            public ChannelManager ChannelManager { get; } = new ChannelManager();
+
+            [Cached]
+            public NotificationOverlay NotificationOverlay { get; } = new NotificationOverlay
+            {
+                Anchor = Anchor.TopRight,
+                Origin = Anchor.TopRight,
+            };
+
+            [Cached]
+            public ChatOverlay ChatOverlay { get; } = new ChatOverlay();
+
+            private readonly MessageNotifier messageNotifier = new MessageNotifier();
+
+            private readonly Channel[] channels;
+
+            public TestContainer(Channel[] channels)
+            {
+                this.channels = channels;
+            }
+
+            [BackgroundDependencyLoader]
+            private void load()
+            {
+                Children = new Drawable[]
+                {
+                    ChannelManager,
+                    ChatOverlay,
+                    NotificationOverlay,
+                    messageNotifier,
+                };
+
+                ((BindableList<Channel>)ChannelManager.AvailableChannels).AddRange(channels);
+
+                foreach (var channel in channels)
+                    ChannelManager.JoinChannel(channel);
+            }
+        }
+    }
+}

osu.Game.Tests/Visual/Ranking/TestSceneAccuracyCircle.cs

@@ -55,7 +55,7 @@ namespace osu.Game.Tests.Visual.Ranking
                         }
                     }
                 },
-                new AccuracyCircle(score)
+                new AccuracyCircle(score, true)
                 {
                     Anchor = Anchor.Centre,
                     Origin = Anchor.Centre,

osu.Game.Tests/Visual/SongSelect/TestSceneBeatmapLeaderboard.cs

@@ -2,15 +2,22 @@
 // See the LICENCE file in the repository root for full licence text.
 
 using System;
+using System.Linq;
+using NUnit.Framework;
 using osu.Framework.Allocation;
+using osu.Framework.Audio;
 using osu.Framework.Graphics;
+using osu.Framework.Platform;
+using osu.Framework.Testing;
 using osu.Game.Beatmaps;
 using osu.Game.Online.Leaderboards;
 using osu.Game.Overlays;
+using osu.Game.Rulesets;
 using osu.Game.Rulesets.Mods;
 using osu.Game.Rulesets.Osu.Mods;
 using osu.Game.Scoring;
 using osu.Game.Screens.Select.Leaderboards;
+using osu.Game.Tests.Resources;
 using osu.Game.Users;
 using osuTK;
 
@@ -23,32 +30,98 @@ namespace osu.Game.Tests.Visual.SongSelect
         [Cached]
         private readonly DialogOverlay dialogOverlay;
 
+        private ScoreManager scoreManager;
+
+        private RulesetStore rulesetStore;
+        private BeatmapManager beatmapManager;
+
+        protected override IReadOnlyDependencyContainer CreateChildDependencies(IReadOnlyDependencyContainer parent)
+        {
+            var dependencies = new DependencyContainer(base.CreateChildDependencies(parent));
+
+            dependencies.Cache(rulesetStore = new RulesetStore(ContextFactory));
+            dependencies.Cache(beatmapManager = new BeatmapManager(LocalStorage, ContextFactory, rulesetStore, null, dependencies.Get<AudioManager>(), Resources, dependencies.Get<GameHost>(), Beatmap.Default));
+            dependencies.Cache(scoreManager = new ScoreManager(rulesetStore, () => beatmapManager, LocalStorage, null, ContextFactory));
+
+            return dependencies;
+        }
+
         public TestSceneBeatmapLeaderboard()
         {
-            Add(dialogOverlay = new DialogOverlay
+            AddRange(new Drawable[]
             {
-                Depth = -1
+                dialogOverlay = new DialogOverlay
+                {
+                    Depth = -1
+                },
+                leaderboard = new FailableLeaderboard
+                {
+                    Origin = Anchor.Centre,
+                    Anchor = Anchor.Centre,
+                    Size = new Vector2(550f, 450f),
+                    Scope = BeatmapLeaderboardScope.Global,
+                }
+            });
+        }
+
+        [Test]
+        public void TestLocalScoresDisplay()
+        {
+            BeatmapInfo beatmapInfo = null;
+
+            AddStep(@"Set scope", () => leaderboard.Scope = BeatmapLeaderboardScope.Local);
+
+            AddStep(@"Set beatmap", () =>
+            {
+                beatmapManager.Import(TestResources.GetQuickTestBeatmapForImport()).Wait();
+                beatmapInfo = beatmapManager.GetAllUsableBeatmapSets().First().Beatmaps.First();
+
+                leaderboard.Beatmap = beatmapInfo;
             });
 
-            Add(leaderboard = new FailableLeaderboard
-            {
-                Origin = Anchor.Centre,
-                Anchor = Anchor.Centre,
-                Size = new Vector2(550f, 450f),
-                Scope = BeatmapLeaderboardScope.Global,
-            });
+            clearScores();
+            checkCount(0);
 
-            AddStep(@"New Scores", newScores);
+            loadMoreScores(() => beatmapInfo);
+            checkCount(10);
+
+            loadMoreScores(() => beatmapInfo);
+            checkCount(20);
+
+            clearScores();
+            checkCount(0);
+        }
+
+        [Test]
+        public void TestGlobalScoresDisplay()
+        {
+            AddStep(@"Set scope", () => leaderboard.Scope = BeatmapLeaderboardScope.Global);
+            AddStep(@"New Scores", () => leaderboard.Scores = generateSampleScores(null));
+        }
+
+        [Test]
+        public void TestPersonalBest()
+        {
             AddStep(@"Show personal best", showPersonalBest);
+            AddStep("null personal best position", showPersonalBestWithNullPosition);
+        }
+
+        [Test]
+        public void TestPlaceholderStates()
+        {
             AddStep(@"Empty Scores", () => leaderboard.SetRetrievalState(PlaceholderState.NoScores));
             AddStep(@"Network failure", () => leaderboard.SetRetrievalState(PlaceholderState.NetworkFailure));
             AddStep(@"No supporter", () => leaderboard.SetRetrievalState(PlaceholderState.NotSupporter));
             AddStep(@"Not logged in", () => leaderboard.SetRetrievalState(PlaceholderState.NotLoggedIn));
             AddStep(@"Unavailable", () => leaderboard.SetRetrievalState(PlaceholderState.Unavailable));
             AddStep(@"None selected", () => leaderboard.SetRetrievalState(PlaceholderState.NoneSelected));
+        }
+
+        [Test]
+        public void TestBeatmapStates()
+        {
             foreach (BeatmapSetOnlineStatus status in Enum.GetValues(typeof(BeatmapSetOnlineStatus)))
                 AddStep($"{status} beatmap", () => showBeatmapWithStatus(status));
-            AddStep("null personal best position", showPersonalBestWithNullPosition);
         }
 
         private void showPersonalBestWithNullPosition()
@@ -96,9 +169,26 @@ namespace osu.Game.Tests.Visual.SongSelect
             };
         }
 
-        private void newScores()
+        private void loadMoreScores(Func<BeatmapInfo> beatmapInfo)
         {
-            var scores = new[]
+            AddStep(@"Load new scores via manager", () =>
+            {
+                foreach (var score in generateSampleScores(beatmapInfo()))
+                    scoreManager.Import(score).Wait();
+            });
+        }
+
+        private void clearScores()
+        {
+            AddStep("Clear all scores", () => scoreManager.Delete(scoreManager.GetAllUsableScores()));
+        }
+
+        private void checkCount(int expected) =>
+            AddUntilStep("Correct count displayed", () => leaderboard.ChildrenOfType<LeaderboardScore>().Count() == expected);
+
+        private static ScoreInfo[] generateSampleScores(BeatmapInfo beatmap)
+        {
+            return new[]
             {
                 new ScoreInfo
                 {
@@ -107,6 +197,7 @@ namespace osu.Game.Tests.Visual.SongSelect
                     MaxCombo = 244,
                     TotalScore = 1707827,
                     //Mods = new Mod[] { new OsuModHidden(), new OsuModHardRock(), },
+                    Beatmap = beatmap,
                     User = new User
                     {
                         Id = 6602580,
@@ -125,6 +216,7 @@ namespace osu.Game.Tests.Visual.SongSelect
                     MaxCombo = 244,
                     TotalScore = 1707827,
                     //Mods = new Mod[] { new OsuModHidden(), new OsuModHardRock(), },
+                    Beatmap = beatmap,
                     User = new User
                     {
                         Id = 4608074,
@@ -143,6 +235,7 @@ namespace osu.Game.Tests.Visual.SongSelect
                     MaxCombo = 244,
                     TotalScore = 1707827,
                     //Mods = new Mod[] { new OsuModHidden(), new OsuModHardRock(), },
+                    Beatmap = beatmap,
                     User = new User
                     {
                         Id = 1014222,
@@ -161,6 +254,7 @@ namespace osu.Game.Tests.Visual.SongSelect
                     MaxCombo = 244,
                     TotalScore = 1707827,
                     //Mods = new Mod[] { new OsuModHidden(), new OsuModHardRock(), },
+                    Beatmap = beatmap,
                     User = new User
                     {
                         Id = 1541390,
@@ -179,6 +273,7 @@ namespace osu.Game.Tests.Visual.SongSelect
                     MaxCombo = 244,
                     TotalScore = 1707827,
                     //Mods = new Mod[] { new OsuModHidden(), new OsuModHardRock(), },
+                    Beatmap = beatmap,
                     User = new User
                     {
                         Id = 2243452,
@@ -197,6 +292,7 @@ namespace osu.Game.Tests.Visual.SongSelect
                     MaxCombo = 244,
                     TotalScore = 1707827,
                     //Mods = new Mod[] { new OsuModHidden(), new OsuModHardRock(), },
+                    Beatmap = beatmap,
                     User = new User
                     {
                         Id = 2705430,
@@ -215,6 +311,7 @@ namespace osu.Game.Tests.Visual.SongSelect
                     MaxCombo = 244,
                     TotalScore = 1707827,
                     //Mods = new Mod[] { new OsuModHidden(), new OsuModHardRock(), },
+                    Beatmap = beatmap,
                     User = new User
                     {
                         Id = 7151382,
@@ -233,6 +330,7 @@ namespace osu.Game.Tests.Visual.SongSelect
                     MaxCombo = 244,
                     TotalScore = 1707827,
                     //Mods = new Mod[] { new OsuModHidden(), new OsuModHardRock(), },
+                    Beatmap = beatmap,
                     User = new User
                     {
                         Id = 2051389,
@@ -251,6 +349,7 @@ namespace osu.Game.Tests.Visual.SongSelect
                     MaxCombo = 244,
                     TotalScore = 1707827,
                     //Mods = new Mod[] { new OsuModHidden(), new OsuModHardRock(), },
+                    Beatmap = beatmap,
                     User = new User
                     {
                         Id = 6169483,
@@ -269,6 +368,7 @@ namespace osu.Game.Tests.Visual.SongSelect
                     MaxCombo = 244,
                     TotalScore = 1707827,
                     //Mods = new Mod[] { new OsuModHidden(), new OsuModHardRock(), },
+                    Beatmap = beatmap,
                     User = new User
                     {
                         Id = 6702666,
@@ -281,8 +381,6 @@ namespace osu.Game.Tests.Visual.SongSelect
                     },
                 },
             };
-
-            leaderboard.Scores = scores;
         }
 
         private void showBeatmapWithStatus(BeatmapSetOnlineStatus status)

osu.Game/Beatmaps/DifficultyRecommender.cs

@@ -101,10 +101,20 @@ namespace osu.Game.Beatmaps
         /// Rulesets ordered descending by their respective recommended difficulties.
         /// The currently selected ruleset will always be first.
         /// </returns>
-        private IEnumerable<RulesetInfo> orderedRulesets =>
-            recommendedDifficultyMapping
-                .OrderByDescending(pair => pair.Value).Select(pair => pair.Key).Where(r => !r.Equals(ruleset.Value))
-                .Prepend(ruleset.Value);
+        private IEnumerable<RulesetInfo> orderedRulesets
+        {
+            get
+            {
+                if (LoadState < LoadState.Ready || ruleset.Value == null)
+                    return Enumerable.Empty<RulesetInfo>();
+
+                return recommendedDifficultyMapping
+                       .OrderByDescending(pair => pair.Value)
+                       .Select(pair => pair.Key)
+                       .Where(r => !r.Equals(ruleset.Value))
+                       .Prepend(ruleset.Value);
+            }
+        }
 
         private void onlineStateChanged(ValueChangedEvent<APIState> state) => Schedule(() =>
         {

osu.Game/Beatmaps/MetadataUtils.cs

@@ -0,0 +1,47 @@
+// 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.
+
+#nullable enable
+
+using System.Linq;
+using System.Text;
+
+namespace osu.Game.Beatmaps
+{
+    /// <summary>
+    /// Groups utility methods used to handle beatmap metadata.
+    /// </summary>
+    public static class MetadataUtils
+    {
+        /// <summary>
+        /// Returns <see langword="true"/> if the character <paramref name="c"/> can be used in <see cref="BeatmapMetadata.Artist"/> and <see cref="BeatmapMetadata.Title"/> fields.
+        /// Characters not matched by this method can be placed in <see cref="BeatmapMetadata.ArtistUnicode"/> and <see cref="BeatmapMetadata.TitleUnicode"/>.
+        /// </summary>
+        public static bool IsRomanised(char c) => c <= 0xFF;
+
+        /// <summary>
+        /// Returns <see langword="true"/> if the string <paramref name="str"/> can be used in <see cref="BeatmapMetadata.Artist"/> and <see cref="BeatmapMetadata.Title"/> fields.
+        /// Strings not matched by this method can be placed in <see cref="BeatmapMetadata.ArtistUnicode"/> and <see cref="BeatmapMetadata.TitleUnicode"/>.
+        /// </summary>
+        public static bool IsRomanised(string? str) => string.IsNullOrEmpty(str) || str.All(IsRomanised);
+
+        /// <summary>
+        /// Returns a copy of <paramref name="str"/> with all characters that do not match <see cref="IsRomanised(char)"/> removed.
+        /// </summary>
+        public static string StripNonRomanisedCharacters(string? str)
+        {
+            if (string.IsNullOrEmpty(str))
+                return string.Empty;
+
+            var stringBuilder = new StringBuilder(str.Length);
+
+            foreach (var c in str)
+            {
+                if (IsRomanised(c))
+                    stringBuilder.Append(c);
+            }
+
+            return stringBuilder.ToString().Trim();
+        }
+    }
+}

osu.Game/Configuration/OsuConfigManager.cs

@@ -61,6 +61,9 @@ namespace osu.Game.Configuration
 
             SetDefault(OsuSetting.ShowOnlineExplicitContent, false);
 
+            SetDefault(OsuSetting.NotifyOnUsernameMentioned, true);
+            SetDefault(OsuSetting.NotifyOnPrivateMessage, true);
+
             // Audio
             SetDefault(OsuSetting.VolumeInactive, 0.25, 0, 1, 0.01);
 
@@ -259,6 +262,8 @@ namespace osu.Game.Configuration
         ScalingSizeY,
         UIScale,
         IntroSequence,
+        NotifyOnUsernameMentioned,
+        NotifyOnPrivateMessage,
         UIHoldActivationDelay,
         HitLighting,
         MenuBackgroundSource,

osu.Game/Configuration/RankingType.cs

@@ -1,20 +0,0 @@
-// 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.ComponentModel;
-
-namespace osu.Game.Configuration
-{
-    public enum RankingType
-    {
-        Local,
-
-        [Description("Global")]
-        Top,
-
-        [Description("Selected Mods")]
-        SelectedMod,
-        Friends,
-        Country
-    }
-}

osu.Game/Graphics/Backgrounds/SeasonalBackgroundLoader.cs

@@ -99,5 +99,14 @@ namespace osu.Game.Graphics.Backgrounds
             // ensure we're not loading in without a transition.
             this.FadeInFromZero(200, Easing.InOutSine);
         }
+
+        public override bool Equals(Background other)
+        {
+            if (ReferenceEquals(null, other)) return false;
+            if (ReferenceEquals(this, other)) return true;
+
+            return other.GetType() == GetType()
+                   && ((SeasonalBackground)other).url == url;
+        }
     }
 }

osu.Game/Graphics/Containers/OsuClickableContainer.cs

@@ -19,7 +19,7 @@ namespace osu.Game.Graphics.Containers
 
         protected virtual HoverClickSounds CreateHoverClickSounds(HoverSampleSet sampleSet) => new HoverClickSounds(sampleSet);
 
-        public OsuClickableContainer(HoverSampleSet sampleSet = HoverSampleSet.Normal)
+        public OsuClickableContainer(HoverSampleSet sampleSet = HoverSampleSet.Default)
         {
             this.sampleSet = sampleSet;
         }

osu.Game/Graphics/Containers/OsuFocusedOverlayContainer.cs

@@ -107,10 +107,10 @@ namespace osu.Game.Graphics.Containers
         {
         }
 
-        private bool playedPopInSound;
-
         protected override void UpdateState(ValueChangedEvent<Visibility> state)
         {
+            bool didChange = state.NewValue != state.OldValue;
+
             switch (state.NewValue)
             {
                 case Visibility.Visible:
@@ -121,18 +121,15 @@ namespace osu.Game.Graphics.Containers
                         return;
                     }
 
-                    samplePopIn?.Play();
-                    playedPopInSound = true;
+                    if (didChange)
+                        samplePopIn?.Play();
 
                     if (BlockScreenWideMouse && DimMainContent) game?.AddBlockingOverlay(this);
                     break;
 
                 case Visibility.Hidden:
-                    if (playedPopInSound)
-                    {
+                    if (didChange)
                         samplePopOut?.Play();
-                        playedPopInSound = false;
-                    }
 
                     if (BlockScreenWideMouse) game?.RemoveBlockingOverlay(this);
                     break;

osu.Game/Graphics/UserInterface/DrawableOsuMenuItem.cs

@@ -3,7 +3,6 @@
 
 using osu.Framework.Allocation;
 using osu.Framework.Audio;
-using osu.Framework.Audio.Sample;
 using osu.Framework.Extensions.Color4Extensions;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
@@ -23,9 +22,6 @@ namespace osu.Game.Graphics.UserInterface
         private const int text_size = 17;
         private const int transition_length = 80;
 
-        private Sample sampleClick;
-        private Sample sampleHover;
-
         private TextContainer text;
 
         public DrawableOsuMenuItem(MenuItem item)
@@ -36,12 +32,11 @@ namespace osu.Game.Graphics.UserInterface
         [BackgroundDependencyLoader]
         private void load(AudioManager audio)
         {
-            sampleHover = audio.Samples.Get(@"UI/generic-hover");
-            sampleClick = audio.Samples.Get(@"UI/generic-select");
-
             BackgroundColour = Color4.Transparent;
             BackgroundColourHover = Color4Extensions.FromHex(@"172023");
 
+            AddInternal(new HoverClickSounds());
+
             updateTextColour();
 
             Item.Action.BindDisabledChanged(_ => updateState(), true);
@@ -84,7 +79,6 @@ namespace osu.Game.Graphics.UserInterface
 
             if (IsHovered && !Item.Action.Disabled)
             {
-                sampleHover.Play();
                 text.BoldText.FadeIn(transition_length, Easing.OutQuint);
                 text.NormalText.FadeOut(transition_length, Easing.OutQuint);
             }
@@ -95,12 +89,6 @@ namespace osu.Game.Graphics.UserInterface
             }
         }
 
-        protected override bool OnClick(ClickEvent e)
-        {
-            sampleClick.Play();
-            return base.OnClick(e);
-        }
-
         protected sealed override Drawable CreateContent() => text = CreateTextContainer();
         protected virtual TextContainer CreateTextContainer() => new TextContainer();
 

osu.Game/Graphics/UserInterface/HoverClickSounds.cs

@@ -28,7 +28,7 @@ namespace osu.Game.Graphics.UserInterface
         /// Array of button codes which should trigger the click sound.
         /// If this optional parameter is omitted or set to <code>null</code>, the click sound will only be played on left click.
         /// </param>
-        public HoverClickSounds(HoverSampleSet sampleSet = HoverSampleSet.Normal, MouseButton[] buttons = null)
+        public HoverClickSounds(HoverSampleSet sampleSet = HoverSampleSet.Default, MouseButton[] buttons = null)
             : base(sampleSet)
         {
             this.buttons = buttons ?? new[] { MouseButton.Left };
@@ -45,7 +45,8 @@ namespace osu.Game.Graphics.UserInterface
         [BackgroundDependencyLoader]
         private void load(AudioManager audio)
         {
-            sampleClick = audio.Samples.Get($@"UI/generic-select{SampleSet.GetDescription()}");
+            sampleClick = audio.Samples.Get($@"UI/{SampleSet.GetDescription()}-select")
+                          ?? audio.Samples.Get($@"UI/{HoverSampleSet.Default.GetDescription()}-select");
         }
     }
 }

osu.Game/Graphics/UserInterface/HoverSampleSet.cs

@@ -0,0 +1,25 @@
+// 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.ComponentModel;
+
+namespace osu.Game.Graphics.UserInterface
+{
+    public enum HoverSampleSet
+    {
+        [Description("default")]
+        Default,
+
+        [Description("button")]
+        Button,
+
+        [Description("softer")]
+        Soft,
+
+        [Description("toolbar")]
+        Toolbar,
+
+        [Description("songselect")]
+        SongSelect
+    }
+}

osu.Game/Graphics/UserInterface/HoverSounds.cs

@@ -1,7 +1,6 @@
 // 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.ComponentModel;
 using osu.Framework.Allocation;
 using osu.Framework.Audio;
 using osu.Framework.Audio.Sample;
@@ -22,7 +21,7 @@ namespace osu.Game.Graphics.UserInterface
 
         protected readonly HoverSampleSet SampleSet;
 
-        public HoverSounds(HoverSampleSet sampleSet = HoverSampleSet.Normal)
+        public HoverSounds(HoverSampleSet sampleSet = HoverSampleSet.Default)
         {
             SampleSet = sampleSet;
             RelativeSizeAxes = Axes.Both;
@@ -31,7 +30,8 @@ namespace osu.Game.Graphics.UserInterface
         [BackgroundDependencyLoader]
         private void load(AudioManager audio, SessionStatics statics)
         {
-            sampleHover = audio.Samples.Get($@"UI/generic-hover{SampleSet.GetDescription()}");
+            sampleHover = audio.Samples.Get($@"UI/{SampleSet.GetDescription()}-hover")
+                          ?? audio.Samples.Get($@"UI/{HoverSampleSet.Default.GetDescription()}-hover");
         }
 
         public override void PlayHoverSample()
@@ -40,22 +40,4 @@ namespace osu.Game.Graphics.UserInterface
             sampleHover.Play();
         }
     }
-
-    public enum HoverSampleSet
-    {
-        [Description("")]
-        Loud,
-
-        [Description("-soft")]
-        Normal,
-
-        [Description("-softer")]
-        Soft,
-
-        [Description("-toolbar")]
-        Toolbar,
-
-        [Description("-songselect")]
-        SongSelect
-    }
 }

osu.Game/Graphics/UserInterface/OsuAnimatedButton.cs

@@ -44,6 +44,7 @@ namespace osu.Game.Graphics.UserInterface
         private readonly Box hover;
 
         public OsuAnimatedButton()
+            : base(HoverSampleSet.Button)
         {
             base.Content.Add(content = new Container
             {

osu.Game/Graphics/UserInterface/OsuButton.cs

@@ -49,7 +49,7 @@ namespace osu.Game.Graphics.UserInterface
         protected Box Background;
         protected SpriteText SpriteText;
 
-        public OsuButton(HoverSampleSet? hoverSounds = HoverSampleSet.Loud)
+        public OsuButton(HoverSampleSet? hoverSounds = HoverSampleSet.Button)
         {
             Height = 40;
 

osu.Game/Graphics/UserInterfaceV2/LabelledTextBox.cs

@@ -21,6 +21,7 @@ namespace osu.Game.Graphics.UserInterfaceV2
 
         public bool ReadOnly
         {
+            get => Component.ReadOnly;
             set => Component.ReadOnly = value;
         }
 
@@ -45,14 +46,7 @@ namespace osu.Game.Graphics.UserInterfaceV2
             Component.BorderColour = colours.Blue;
         }
 
-        protected virtual OsuTextBox CreateTextBox() => new OsuTextBox
-        {
-            CommitOnFocusLost = true,
-            Anchor = Anchor.Centre,
-            Origin = Anchor.Centre,
-            RelativeSizeAxes = Axes.X,
-            CornerRadius = CORNER_RADIUS,
-        };
+        protected virtual OsuTextBox CreateTextBox() => new OsuTextBox();
 
         public override bool AcceptsFocus => true;
 
@@ -64,6 +58,12 @@ namespace osu.Game.Graphics.UserInterfaceV2
 
         protected override OsuTextBox CreateComponent() => CreateTextBox().With(t =>
         {
+            t.CommitOnFocusLost = true;
+            t.Anchor = Anchor.Centre;
+            t.Origin = Anchor.Centre;
+            t.RelativeSizeAxes = Axes.X;
+            t.CornerRadius = CORNER_RADIUS;
+
             t.OnCommit += (sender, newText) => OnCommit?.Invoke(sender, newText);
         });
     }

osu.Game/Localisation/ChatStrings.cs

@@ -7,17 +7,17 @@ namespace osu.Game.Localisation
 {
     public static class ChatStrings
     {
-        private const string prefix = "osu.Game.Localisation.Chat";
+        private const string prefix = @"osu.Game.Localisation.Chat";
 
         /// <summary>
         /// "chat"
         /// </summary>
-        public static LocalisableString HeaderTitle => new TranslatableString(getKey("header_title"), "chat");
+        public static LocalisableString HeaderTitle => new TranslatableString(getKey(@"header_title"), @"chat");
 
         /// <summary>
         /// "join the real-time discussion"
         /// </summary>
-        public static LocalisableString HeaderDescription => new TranslatableString(getKey("header_description"), "join the real-time discussion");
+        public static LocalisableString HeaderDescription => new TranslatableString(getKey(@"header_description"), @"join the real-time discussion");
 
         private static string getKey(string key) => $"{prefix}:{key}";
     }

osu.Game/Localisation/CommonStrings.cs

@@ -7,12 +7,12 @@ namespace osu.Game.Localisation
 {
     public static class CommonStrings
     {
-        private const string prefix = "osu.Game.Localisation.Common";
+        private const string prefix = @"osu.Game.Localisation.Common";
 
         /// <summary>
         /// "Cancel"
         /// </summary>
-        public static LocalisableString Cancel => new TranslatableString(getKey("cancel"), "Cancel");
+        public static LocalisableString Cancel => new TranslatableString(getKey(@"cancel"), @"Cancel");
 
         private static string getKey(string key) => $"{prefix}:{key}";
     }

osu.Game/Localisation/Language.cs

@@ -7,10 +7,10 @@ namespace osu.Game.Localisation
 {
     public enum Language
     {
-        [Description("English")]
+        [Description(@"English")]
         en,
 
-        [Description("日本語")]
+        [Description(@"日本語")]
         ja
     }
 }

osu.Game/Localisation/NotificationsStrings.cs

@@ -7,17 +7,17 @@ namespace osu.Game.Localisation
 {
     public static class NotificationsStrings
     {
-        private const string prefix = "osu.Game.Localisation.Notifications";
+        private const string prefix = @"osu.Game.Localisation.Notifications";
 
         /// <summary>
         /// "notifications"
         /// </summary>
-        public static LocalisableString HeaderTitle => new TranslatableString(getKey("header_title"), "notifications");
+        public static LocalisableString HeaderTitle => new TranslatableString(getKey(@"header_title"), @"notifications");
 
         /// <summary>
         /// "waiting for 'ya"
         /// </summary>
-        public static LocalisableString HeaderDescription => new TranslatableString(getKey("header_description"), "waiting for 'ya");
+        public static LocalisableString HeaderDescription => new TranslatableString(getKey(@"header_description"), @"waiting for 'ya");
 
         private static string getKey(string key) => $"{prefix}:{key}";
     }

osu.Game/Localisation/NowPlayingStrings.cs

@@ -7,17 +7,17 @@ namespace osu.Game.Localisation
 {
     public static class NowPlayingStrings
     {
-        private const string prefix = "osu.Game.Localisation.NowPlaying";
+        private const string prefix = @"osu.Game.Localisation.NowPlaying";
 
         /// <summary>
         /// "now playing"
         /// </summary>
-        public static LocalisableString HeaderTitle => new TranslatableString(getKey("header_title"), "now playing");
+        public static LocalisableString HeaderTitle => new TranslatableString(getKey(@"header_title"), @"now playing");
 
         /// <summary>
         /// "manage the currently playing track"
         /// </summary>
-        public static LocalisableString HeaderDescription => new TranslatableString(getKey("header_description"), "manage the currently playing track");
+        public static LocalisableString HeaderDescription => new TranslatableString(getKey(@"header_description"), @"manage the currently playing track");
 
         private static string getKey(string key) => $"{prefix}:{key}";
     }

osu.Game/Localisation/ResourceManagerLocalisationStore.cs

@@ -5,6 +5,7 @@ using System;
 using System.Collections.Generic;
 using System.Globalization;
 using System.IO;
+using System.Linq;
 using System.Resources;
 using System.Threading.Tasks;
 using osu.Framework.Localisation;
@@ -34,7 +35,29 @@ namespace osu.Game.Localisation
             lock (resourceManagers)
             {
                 if (!resourceManagers.TryGetValue(ns, out var manager))
-                    resourceManagers[ns] = manager = new ResourceManager(ns, GetType().Assembly);
+                {
+                    var loadedAssemblies = AppDomain.CurrentDomain.GetAssemblies();
+
+                    // Traverse backwards through periods in the namespace to find a matching assembly.
+                    string assemblyName = ns;
+
+                    while (!string.IsNullOrEmpty(assemblyName))
+                    {
+                        var matchingAssembly = loadedAssemblies.FirstOrDefault(asm => asm.GetName().Name == assemblyName);
+
+                        if (matchingAssembly != null)
+                        {
+                            resourceManagers[ns] = manager = new ResourceManager(ns, matchingAssembly);
+                            break;
+                        }
+
+                        int lastIndex = Math.Max(0, assemblyName.LastIndexOf('.'));
+                        assemblyName = assemblyName.Substring(0, lastIndex);
+                    }
+                }
+
+                if (manager == null)
+                    return null;
 
                 try
                 {

osu.Game/Localisation/SettingsStrings.cs

@@ -7,17 +7,17 @@ namespace osu.Game.Localisation
 {
     public static class SettingsStrings
     {
-        private const string prefix = "osu.Game.Localisation.Settings";
+        private const string prefix = @"osu.Game.Localisation.Settings";
 
         /// <summary>
         /// "settings"
         /// </summary>
-        public static LocalisableString HeaderTitle => new TranslatableString(getKey("header_title"), "settings");
+        public static LocalisableString HeaderTitle => new TranslatableString(getKey(@"header_title"), @"settings");
 
         /// <summary>
         /// "change the way osu! behaves"
         /// </summary>
-        public static LocalisableString HeaderDescription => new TranslatableString(getKey("header_description"), "change the way osu! behaves");
+        public static LocalisableString HeaderDescription => new TranslatableString(getKey(@"header_description"), @"change the way osu! behaves");
 
         private static string getKey(string key) => $"{prefix}:{key}";
     }

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

@@ -11,11 +11,11 @@ namespace osu.Game.Online.API.Requests
 {
     public class CreateChannelRequest : APIRequest<APIChatChannel>
     {
-        private readonly Channel channel;
+        public readonly Channel Channel;
 
         public CreateChannelRequest(Channel channel)
         {
-            this.channel = channel;
+            Channel = channel;
         }
 
         protected override WebRequest CreateWebRequest()
@@ -24,7 +24,7 @@ namespace osu.Game.Online.API.Requests
             req.Method = HttpMethod.Post;
 
             req.AddParameter("type", $"{ChannelType.PM}");
-            req.AddParameter("target_id", $"{channel.Users.First().Id}");
+            req.AddParameter("target_id", $"{Channel.Users.First().Id}");
 
             return req;
         }

osu.Game/Online/Chat/Message.cs

@@ -63,5 +63,7 @@ namespace osu.Game.Online.Chat
 
         // ReSharper disable once ImpureMethodCallOnReadonlyValueField
         public override int GetHashCode() => Id.GetHashCode();
+
+        public override string ToString() => $"[{ChannelId}] ({Id}) {Sender}: {Content}";
     }
 }

osu.Game/Online/Chat/MessageNotifier.cs

@@ -0,0 +1,181 @@
+// 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 System.Collections.Specialized;
+using System.Linq;
+using osu.Framework.Allocation;
+using osu.Framework.Bindables;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Sprites;
+using osu.Game.Configuration;
+using osu.Game.Graphics;
+using osu.Game.Online.API;
+using osu.Game.Overlays;
+using osu.Game.Overlays.Notifications;
+using osu.Game.Users;
+
+namespace osu.Game.Online.Chat
+{
+    /// <summary>
+    /// Component that handles creating and posting notifications for incoming messages.
+    /// </summary>
+    public class MessageNotifier : Component
+    {
+        [Resolved]
+        private NotificationOverlay notifications { get; set; }
+
+        [Resolved]
+        private ChatOverlay chatOverlay { get; set; }
+
+        [Resolved]
+        private ChannelManager channelManager { get; set; }
+
+        private Bindable<bool> notifyOnUsername;
+        private Bindable<bool> notifyOnPrivateMessage;
+
+        private readonly IBindable<User> localUser = new Bindable<User>();
+        private readonly IBindableList<Channel> joinedChannels = new BindableList<Channel>();
+
+        [BackgroundDependencyLoader]
+        private void load(OsuConfigManager config, IAPIProvider api)
+        {
+            notifyOnUsername = config.GetBindable<bool>(OsuSetting.NotifyOnUsernameMentioned);
+            notifyOnPrivateMessage = config.GetBindable<bool>(OsuSetting.NotifyOnPrivateMessage);
+
+            localUser.BindTo(api.LocalUser);
+            joinedChannels.BindTo(channelManager.JoinedChannels);
+        }
+
+        protected override void LoadComplete()
+        {
+            base.LoadComplete();
+            joinedChannels.BindCollectionChanged(channelsChanged, true);
+        }
+
+        private void channelsChanged(object sender, NotifyCollectionChangedEventArgs e)
+        {
+            switch (e.Action)
+            {
+                case NotifyCollectionChangedAction.Add:
+                    foreach (var channel in e.NewItems.Cast<Channel>())
+                        channel.NewMessagesArrived += checkNewMessages;
+
+                    break;
+
+                case NotifyCollectionChangedAction.Remove:
+                    foreach (var channel in e.OldItems.Cast<Channel>())
+                        channel.NewMessagesArrived -= checkNewMessages;
+
+                    break;
+            }
+        }
+
+        private void checkNewMessages(IEnumerable<Message> messages)
+        {
+            if (!messages.Any())
+                return;
+
+            var channel = channelManager.JoinedChannels.SingleOrDefault(c => c.Id == messages.First().ChannelId);
+
+            if (channel == null)
+                return;
+
+            // Only send notifications, if ChatOverlay and the target channel aren't visible.
+            if (chatOverlay.IsPresent && channelManager.CurrentChannel.Value == channel)
+                return;
+
+            foreach (var message in messages.OrderByDescending(m => m.Id))
+            {
+                // ignore messages that already have been read
+                if (message.Id <= channel.LastReadId)
+                    return;
+
+                if (message.Sender.Id == localUser.Value.Id)
+                    continue;
+
+                // check for private messages first to avoid both posting two notifications about the same message
+                if (checkForPMs(channel, message))
+                    continue;
+
+                checkForMentions(channel, message);
+            }
+        }
+
+        /// <summary>
+        /// Checks whether the user enabled private message notifications and whether specified <paramref name="message"/> is a direct message.
+        /// </summary>
+        /// <param name="channel">The channel associated to the <paramref name="message"/></param>
+        /// <param name="message">The message to be checked</param>
+        /// <returns>Whether a notification was fired.</returns>
+        private bool checkForPMs(Channel channel, Message message)
+        {
+            if (!notifyOnPrivateMessage.Value || channel.Type != ChannelType.PM)
+                return false;
+
+            notifications.Post(new PrivateMessageNotification(message.Sender.Username, channel));
+            return true;
+        }
+
+        private void checkForMentions(Channel channel, Message message)
+        {
+            if (!notifyOnUsername.Value || !checkContainsUsername(message.Content, localUser.Value.Username)) return;
+
+            notifications.Post(new MentionNotification(message.Sender.Username, channel));
+        }
+
+        /// <summary>
+        /// Checks if <paramref name="message"/> contains <paramref name="username"/>.
+        /// This will match against the case where underscores are used instead of spaces (which is how osu-stable handles usernames with spaces).
+        /// </summary>
+        private static bool checkContainsUsername(string message, string username) => message.Contains(username, StringComparison.OrdinalIgnoreCase) || message.Contains(username.Replace(' ', '_'), StringComparison.OrdinalIgnoreCase);
+
+        public class PrivateMessageNotification : OpenChannelNotification
+        {
+            public PrivateMessageNotification(string username, Channel channel)
+                : base(channel)
+            {
+                Icon = FontAwesome.Solid.Envelope;
+                Text = $"You received a private message from '{username}'. Click to read it!";
+            }
+        }
+
+        public class MentionNotification : OpenChannelNotification
+        {
+            public MentionNotification(string username, Channel channel)
+                : base(channel)
+            {
+                Icon = FontAwesome.Solid.At;
+                Text = $"Your name was mentioned in chat by '{username}'. Click to find out why!";
+            }
+        }
+
+        public abstract class OpenChannelNotification : SimpleNotification
+        {
+            protected OpenChannelNotification(Channel channel)
+            {
+                this.channel = channel;
+            }
+
+            private readonly Channel channel;
+
+            public override bool IsImportant => false;
+
+            [BackgroundDependencyLoader]
+            private void load(OsuColour colours, ChatOverlay chatOverlay, NotificationOverlay notificationOverlay, ChannelManager channelManager)
+            {
+                IconBackgound.Colour = colours.PurpleDark;
+
+                Activated = delegate
+                {
+                    notificationOverlay.Hide();
+                    chatOverlay.Show();
+                    channelManager.CurrentChannel.Value = channel;
+
+                    return true;
+                };
+            }
+        }
+    }
+}

osu.Game/Online/Leaderboards/Leaderboard.cs

@@ -44,9 +44,9 @@ namespace osu.Game.Online.Leaderboards
 
         protected override Container<Drawable> Content => content;
 
-        private IEnumerable<TScoreInfo> scores;
+        private ICollection<TScoreInfo> scores;
 
-        public IEnumerable<TScoreInfo> Scores
+        public ICollection<TScoreInfo> Scores
         {
             get => scores;
             set
@@ -126,7 +126,7 @@ namespace osu.Game.Online.Leaderboards
                     return;
 
                 scope = value;
-                UpdateScores();
+                RefreshScores();
             }
         }
 
@@ -154,7 +154,7 @@ namespace osu.Game.Online.Leaderboards
                     case PlaceholderState.NetworkFailure:
                         replacePlaceholder(new ClickablePlaceholder(@"Couldn't fetch scores!", FontAwesome.Solid.Sync)
                         {
-                            Action = UpdateScores,
+                            Action = RefreshScores
                         });
                         break;
 
@@ -254,8 +254,6 @@ namespace osu.Game.Online.Leaderboards
             apiState.BindValueChanged(onlineStateChanged, true);
         }
 
-        public void RefreshScores() => UpdateScores();
-
         private APIRequest getScoresRequest;
 
         protected abstract bool IsOnlineScope { get; }
@@ -267,12 +265,14 @@ namespace osu.Game.Online.Leaderboards
                 case APIState.Online:
                 case APIState.Offline:
                     if (IsOnlineScope)
-                        UpdateScores();
+                        RefreshScores();
 
                     break;
             }
         });
 
+        public void RefreshScores() => Scheduler.AddOnce(UpdateScores);
+
         protected void UpdateScores()
         {
             // don't display any scores or placeholder until the first Scores_Set has been called.
@@ -290,7 +290,7 @@ namespace osu.Game.Online.Leaderboards
 
                 getScoresRequest = FetchScores(scores => Schedule(() =>
                 {
-                    Scores = scores;
+                    Scores = scores.ToArray();
                     PlaceholderState = Scores.Any() ? PlaceholderState.Successful : PlaceholderState.NoScores;
                 }));
 

osu.Game/OsuGame.cs

@@ -426,9 +426,12 @@ namespace osu.Game
         {
             // The given ScoreInfo may have missing properties if it was retrieved from online data. Re-retrieve it from the database
             // to ensure all the required data for presenting a replay are present.
-            var databasedScoreInfo = score.OnlineScoreID != null
-                ? ScoreManager.Query(s => s.OnlineScoreID == score.OnlineScoreID)
-                : ScoreManager.Query(s => s.Hash == score.Hash);
+            ScoreInfo databasedScoreInfo = null;
+
+            if (score.OnlineScoreID != null)
+                databasedScoreInfo = ScoreManager.Query(s => s.OnlineScoreID == score.OnlineScoreID);
+
+            databasedScoreInfo ??= ScoreManager.Query(s => s.Hash == score.Hash);
 
             if (databasedScoreInfo == null)
             {
@@ -712,7 +715,6 @@ namespace osu.Game
                 PostNotification = n => notifications.Post(n),
             }, Add, true);
 
-            loadComponentSingleFile(difficultyRecommender, Add);
             loadComponentSingleFile(stableImportManager, Add);
 
             loadComponentSingleFile(screenshotManager, Add);
@@ -728,6 +730,7 @@ namespace osu.Game
             var rankingsOverlay = loadComponentSingleFile(new RankingsOverlay(), overlayContent.Add, true);
             loadComponentSingleFile(channelManager = new ChannelManager(), AddInternal, true);
             loadComponentSingleFile(chatOverlay = new ChatOverlay(), overlayContent.Add, true);
+            loadComponentSingleFile(new MessageNotifier(), AddInternal, true);
             loadComponentSingleFile(Settings = new SettingsOverlay { GetToolbarHeight = () => ToolbarOffset }, leftFloatingOverlayContent.Add, true);
             var changelogOverlay = loadComponentSingleFile(new ChangelogOverlay(), overlayContent.Add, true);
             loadComponentSingleFile(userProfile = new UserProfileOverlay(), overlayContent.Add, true);
@@ -754,6 +757,7 @@ namespace osu.Game
 
             chatOverlay.State.ValueChanged += state => channelManager.HighPollRate.Value = state.NewValue == Visibility.Visible;
 
+            Add(difficultyRecommender);
             Add(externalLinkOpener = new ExternalLinkOpener());
             Add(new MusicKeyBindingHandler());
 

osu.Game/Overlays/BeatmapListing/BeatmapListingSearchControl.cs

@@ -14,6 +14,7 @@ using osu.Game.Beatmaps;
 using osu.Game.Configuration;
 using osu.Game.Graphics.Containers;
 using osu.Game.Graphics.UserInterface;
+using osu.Game.Resources.Localisation.Web;
 using osuTK.Graphics;
 using osu.Game.Rulesets;
 using osu.Game.Scoring;
@@ -126,15 +127,15 @@ namespace osu.Game.Overlays.BeatmapListing
                                 Padding = new MarginPadding { Horizontal = 10 },
                                 Children = new Drawable[]
                                 {
-                                    generalFilter = new BeatmapSearchMultipleSelectionFilterRow<SearchGeneral>(@"General"),
+                                    generalFilter = new BeatmapSearchMultipleSelectionFilterRow<SearchGeneral>(BeatmapsStrings.ListingSearchFiltersGeneral),
                                     modeFilter = new BeatmapSearchRulesetFilterRow(),
-                                    categoryFilter = new BeatmapSearchFilterRow<SearchCategory>(@"Categories"),
-                                    genreFilter = new BeatmapSearchFilterRow<SearchGenre>(@"Genre"),
-                                    languageFilter = new BeatmapSearchFilterRow<SearchLanguage>(@"Language"),
-                                    extraFilter = new BeatmapSearchMultipleSelectionFilterRow<SearchExtra>(@"Extra"),
+                                    categoryFilter = new BeatmapSearchFilterRow<SearchCategory>(BeatmapsStrings.ListingSearchFiltersStatus),
+                                    genreFilter = new BeatmapSearchFilterRow<SearchGenre>(BeatmapsStrings.ListingSearchFiltersGenre),
+                                    languageFilter = new BeatmapSearchFilterRow<SearchLanguage>(BeatmapsStrings.ListingSearchFiltersLanguage),
+                                    extraFilter = new BeatmapSearchMultipleSelectionFilterRow<SearchExtra>(BeatmapsStrings.ListingSearchFiltersExtra),
                                     ranksFilter = new BeatmapSearchScoreFilterRow(),
-                                    playedFilter = new BeatmapSearchFilterRow<SearchPlayed>(@"Played"),
-                                    explicitContentFilter = new BeatmapSearchFilterRow<SearchExplicit>(@"Explicit Content"),
+                                    playedFilter = new BeatmapSearchFilterRow<SearchPlayed>(BeatmapsStrings.ListingSearchFiltersPlayed),
+                                    explicitContentFilter = new BeatmapSearchFilterRow<SearchExplicit>(BeatmapsStrings.ListingSearchFiltersNsfw),
                                 }
                             }
                         }
@@ -172,7 +173,7 @@ namespace osu.Game.Overlays.BeatmapListing
 
             public BeatmapSearchTextBox()
             {
-                PlaceholderText = @"type in keywords...";
+                PlaceholderText = BeatmapsStrings.ListingSearchPrompt;
             }
 
             protected override bool OnKeyDown(KeyDownEvent e)

osu.Game/Overlays/BeatmapListing/BeatmapSearchFilterRow.cs

@@ -11,8 +11,8 @@ using osu.Game.Graphics;
 using osu.Game.Graphics.Sprites;
 using osu.Game.Graphics.UserInterface;
 using osuTK;
-using Humanizer;
 using osu.Framework.Extensions.EnumExtensions;
+using osu.Framework.Localisation;
 
 namespace osu.Game.Overlays.BeatmapListing
 {
@@ -26,7 +26,7 @@ namespace osu.Game.Overlays.BeatmapListing
             set => current.Current = value;
         }
 
-        public BeatmapSearchFilterRow(string headerName)
+        public BeatmapSearchFilterRow(LocalisableString header)
         {
             Drawable filter;
             AutoSizeAxes = Axes.Y;
@@ -53,7 +53,7 @@ namespace osu.Game.Overlays.BeatmapListing
                             Anchor = Anchor.BottomLeft,
                             Origin = Anchor.BottomLeft,
                             Font = OsuFont.GetFont(size: 13),
-                            Text = headerName.Titleize()
+                            Text = header
                         },
                         filter = CreateFilter()
                     }

osu.Game/Overlays/BeatmapListing/BeatmapSearchMultipleSelectionFilterRow.cs

@@ -9,6 +9,7 @@ using osu.Framework.Bindables;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Input.Events;
+using osu.Framework.Localisation;
 using osuTK;
 
 namespace osu.Game.Overlays.BeatmapListing
@@ -19,8 +20,8 @@ namespace osu.Game.Overlays.BeatmapListing
 
         private MultipleSelectionFilter filter;
 
-        public BeatmapSearchMultipleSelectionFilterRow(string headerName)
-            : base(headerName)
+        public BeatmapSearchMultipleSelectionFilterRow(LocalisableString header)
+            : base(header)
         {
             Current.BindTo(filter.Current);
         }

osu.Game/Overlays/BeatmapListing/BeatmapSearchRulesetFilterRow.cs

@@ -3,6 +3,7 @@
 
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
+using osu.Game.Resources.Localisation.Web;
 using osu.Game.Rulesets;
 
 namespace osu.Game.Overlays.BeatmapListing
@@ -10,7 +11,7 @@ namespace osu.Game.Overlays.BeatmapListing
     public class BeatmapSearchRulesetFilterRow : BeatmapSearchFilterRow<RulesetInfo>
     {
         public BeatmapSearchRulesetFilterRow()
-            : base(@"Mode")
+            : base(BeatmapsStrings.ListingSearchFiltersMode)
         {
         }
 

osu.Game/Overlays/BeatmapListing/BeatmapSearchScoreFilterRow.cs

@@ -1,9 +1,11 @@
 // 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 System.Linq;
-using osu.Framework.Extensions;
+using osu.Framework.Localisation;
+using osu.Game.Resources.Localisation.Web;
 using osu.Game.Scoring;
 
 namespace osu.Game.Overlays.BeatmapListing
@@ -11,7 +13,7 @@ namespace osu.Game.Overlays.BeatmapListing
     public class BeatmapSearchScoreFilterRow : BeatmapSearchMultipleSelectionFilterRow<ScoreRank>
     {
         public BeatmapSearchScoreFilterRow()
-            : base(@"Rank Achieved")
+            : base(BeatmapsStrings.ListingSearchFiltersRank)
         {
         }
 
@@ -31,18 +33,36 @@ namespace osu.Game.Overlays.BeatmapListing
             {
             }
 
-            protected override string LabelFor(ScoreRank value)
+            protected override LocalisableString LabelFor(ScoreRank value)
             {
                 switch (value)
                 {
                     case ScoreRank.XH:
-                        return @"Silver SS";
+                        return BeatmapsStrings.RankXH;
+
+                    case ScoreRank.X:
+                        return BeatmapsStrings.RankX;
 
                     case ScoreRank.SH:
-                        return @"Silver S";
+                        return BeatmapsStrings.RankSH;
+
+                    case ScoreRank.S:
+                        return BeatmapsStrings.RankS;
+
+                    case ScoreRank.A:
+                        return BeatmapsStrings.RankA;
+
+                    case ScoreRank.B:
+                        return BeatmapsStrings.RankB;
+
+                    case ScoreRank.C:
+                        return BeatmapsStrings.RankC;
+
+                    case ScoreRank.D:
+                        return BeatmapsStrings.RankD;
 
                     default:
-                        return value.GetDescription();
+                        throw new ArgumentException("Unsupported value.", nameof(value));
                 }
             }
         }

osu.Game/Overlays/BeatmapListing/FilterTabItem.cs

@@ -7,6 +7,7 @@ using osu.Framework.Extensions;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.UserInterface;
 using osu.Framework.Input.Events;
+using osu.Framework.Localisation;
 using osu.Game.Graphics;
 using osu.Game.Graphics.Sprites;
 using osu.Game.Graphics.UserInterface;
@@ -66,7 +67,7 @@ namespace osu.Game.Overlays.BeatmapListing
         /// <summary>
         /// Returns the label text to be used for the supplied <paramref name="value"/>.
         /// </summary>
-        protected virtual string LabelFor(T value) => (value as Enum)?.GetDescription() ?? value.ToString();
+        protected virtual LocalisableString LabelFor(T value) => (value as Enum)?.GetDescription() ?? value.ToString();
 
         private void updateState()
         {

osu.Game/Overlays/BeatmapListingOverlay.cs

@@ -18,6 +18,7 @@ using osu.Game.Beatmaps;
 using osu.Game.Graphics.Sprites;
 using osu.Game.Overlays.BeatmapListing;
 using osu.Game.Overlays.BeatmapListing.Panels;
+using osu.Game.Resources.Localisation.Web;
 using osuTK;
 using osuTK.Graphics;
 
@@ -232,7 +233,7 @@ namespace osu.Game.Overlays
                         {
                             Anchor = Anchor.Centre,
                             Origin = Anchor.Centre,
-                            Text = @"... nope, nothing found.",
+                            Text = BeatmapsStrings.ListingSearchNotFoundQuote,
                         }
                     }
                 });

osu.Game/Overlays/ChangelogOverlay.cs

@@ -8,7 +8,6 @@ using System.Threading.Tasks;
 using JetBrains.Annotations;
 using osu.Framework.Allocation;
 using osu.Framework.Audio;
-using osu.Framework.Audio.Sample;
 using osu.Framework.Bindables;
 using osu.Framework.Graphics;
 using osu.Game.Input.Bindings;
@@ -25,8 +24,6 @@ namespace osu.Game.Overlays
 
         public readonly Bindable<APIChangelogBuild> Current = new Bindable<APIChangelogBuild>();
 
-        private Sample sampleBack;
-
         private List<APIChangelogBuild> builds;
 
         protected List<APIUpdateStream> Streams;
@@ -41,8 +38,6 @@ namespace osu.Game.Overlays
         {
             Header.Build.BindTarget = Current;
 
-            sampleBack = audio.Samples.Get(@"UI/generic-select-soft");
-
             Current.BindValueChanged(e =>
             {
                 if (e.NewValue != null)
@@ -108,7 +103,6 @@ namespace osu.Game.Overlays
                     else
                     {
                         Current.Value = null;
-                        sampleBack?.Play();
                     }
 
                     return true;

osu.Game/Overlays/Chat/DrawableChannel.cs

@@ -6,18 +6,18 @@ using System.Collections.Generic;
 using System.Diagnostics;
 using System.Linq;
 using osu.Framework.Allocation;
-using osuTK.Graphics;
+using osu.Framework.Extensions.Color4Extensions;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
-using osu.Game.Graphics.Containers;
-using osu.Game.Graphics.Cursor;
-using osu.Game.Online.Chat;
 using osu.Framework.Graphics.Shapes;
-using osu.Game.Graphics;
-using osu.Framework.Extensions.Color4Extensions;
 using osu.Framework.Graphics.Sprites;
 using osu.Framework.Utils;
+using osu.Game.Graphics;
+using osu.Game.Graphics.Containers;
+using osu.Game.Graphics.Cursor;
 using osu.Game.Graphics.Sprites;
+using osu.Game.Online.Chat;
+using osuTK.Graphics;
 
 namespace osu.Game.Overlays.Chat
 {

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

@@ -0,0 +1,32 @@
+// 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.Allocation;
+using osu.Framework.Graphics;
+using osu.Game.Configuration;
+
+namespace osu.Game.Overlays.Settings.Sections.Online
+{
+    public class AlertsAndPrivacySettings : SettingsSubsection
+    {
+        protected override string Header => "Alerts and Privacy";
+
+        [BackgroundDependencyLoader]
+        private void load(OsuConfigManager config)
+        {
+            Children = new Drawable[]
+            {
+                new SettingsCheckbox
+                {
+                    LabelText = "Show a notification when someone mentions your name",
+                    Current = config.GetBindable<bool>(OsuSetting.NotifyOnUsernameMentioned)
+                },
+                new SettingsCheckbox
+                {
+                    LabelText = "Show a notification when you receive a private message",
+                    Current = config.GetBindable<bool>(OsuSetting.NotifyOnPrivateMessage)
+                },
+            };
+        }
+    }
+}

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

@@ -21,6 +21,7 @@ namespace osu.Game.Overlays.Settings.Sections
             Children = new Drawable[]
             {
                 new WebSettings(),
+                new AlertsAndPrivacySettings(),
                 new IntegrationSettings()
             };
         }

osu.Game/Overlays/Settings/SettingsNumberBox.cs

@@ -2,16 +2,20 @@
 // See the LICENCE file in the repository root for full licence text.
 
 using osu.Framework.Graphics;
-using osu.Game.Graphics.UserInterface;
 
 namespace osu.Game.Overlays.Settings
 {
     public class SettingsNumberBox : SettingsItem<string>
     {
-        protected override Drawable CreateControl() => new OsuNumberBox
+        protected override Drawable CreateControl() => new NumberBox
         {
             Margin = new MarginPadding { Top = 5 },
             RelativeSizeAxes = Axes.X,
         };
+
+        public class NumberBox : SettingsTextBox.TextBox
+        {
+            protected override bool CanAddCharacter(char character) => char.IsNumber(character);
+        }
     }
 }

osu.Game/Overlays/Settings/SettingsTextBox.cs

@@ -1,18 +1,60 @@
 // 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.Allocation;
+using osu.Framework.Extensions.Color4Extensions;
 using osu.Framework.Graphics;
+using osu.Framework.Input.Events;
+using osu.Game.Graphics;
 using osu.Game.Graphics.UserInterface;
+using osuTK.Graphics;
 
 namespace osu.Game.Overlays.Settings
 {
     public class SettingsTextBox : SettingsItem<string>
     {
-        protected override Drawable CreateControl() => new OsuTextBox
+        protected override Drawable CreateControl() => new TextBox
         {
             Margin = new MarginPadding { Top = 5 },
             RelativeSizeAxes = Axes.X,
             CommitOnFocusLost = true,
         };
+
+        public class TextBox : OsuTextBox
+        {
+            private const float border_thickness = 3;
+
+            private Color4 borderColourFocused;
+            private Color4 borderColourUnfocused;
+
+            [BackgroundDependencyLoader]
+            private void load(OsuColour colour)
+            {
+                borderColourUnfocused = colour.Gray4.Opacity(0.5f);
+                borderColourFocused = BorderColour;
+
+                updateBorder();
+            }
+
+            protected override void OnFocus(FocusEvent e)
+            {
+                base.OnFocus(e);
+
+                updateBorder();
+            }
+
+            protected override void OnFocusLost(FocusLostEvent e)
+            {
+                base.OnFocusLost(e);
+
+                updateBorder();
+            }
+
+            private void updateBorder()
+            {
+                BorderThickness = border_thickness;
+                BorderColour = HasFocus ? borderColourFocused : borderColourUnfocused;
+            }
+        }
     }
 }

osu.Game/Rulesets/Difficulty/DifficultyAttributes.cs

@@ -8,11 +8,11 @@ namespace osu.Game.Rulesets.Difficulty
 {
     public class DifficultyAttributes
     {
-        public Mod[] Mods;
-        public Skill[] Skills;
+        public Mod[] Mods { get; set; }
+        public Skill[] Skills { get; set; }
 
-        public double StarRating;
-        public int MaxCombo;
+        public double StarRating { get; set; }
+        public int MaxCombo { get; set; }
 
         public DifficultyAttributes()
         {

osu.Game/Rulesets/Mods/ModRandom.cs

@@ -8,7 +8,6 @@ using osu.Framework.Graphics.Sprites;
 using osu.Framework.Graphics.UserInterface;
 using osu.Game.Configuration;
 using osu.Game.Graphics;
-using osu.Game.Graphics.UserInterface;
 using osu.Game.Overlays.Settings;
 
 namespace osu.Game.Rulesets.Mods
@@ -50,7 +49,7 @@ namespace osu.Game.Rulesets.Mods
                     }
                 }
 
-                private readonly OsuNumberBox seedNumberBox;
+                private readonly SettingsNumberBox.NumberBox seedNumberBox;
 
                 public SeedControl()
                 {
@@ -76,7 +75,7 @@ namespace osu.Game.Rulesets.Mods
                             {
                                 new Drawable[]
                                 {
-                                    seedNumberBox = new OsuNumberBox
+                                    seedNumberBox = new SettingsNumberBox.NumberBox
                                     {
                                         RelativeSizeAxes = Axes.X,
                                         CommitOnFocusLost = true

osu.Game/Rulesets/Objects/Drawables/DrawableHitObject.cs

@@ -716,7 +716,8 @@ namespace osu.Game.Rulesets.Objects.Drawables
             if (HitObject != null)
                 HitObject.DefaultsApplied -= onDefaultsApplied;
 
-            CurrentSkin.SourceChanged -= skinSourceChanged;
+            if (CurrentSkin != null)
+                CurrentSkin.SourceChanged -= skinSourceChanged;
         }
     }
 

osu.Game/Rulesets/Objects/Types/IHasDisplayColour.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.Bindables;
+using osuTK.Graphics;
+
+namespace osu.Game.Rulesets.Objects.Types
+{
+    /// <summary>
+    /// A HitObject which has a preferred display colour. Will be used for editor timeline display.
+    /// </summary>
+    public interface IHasDisplayColour
+    {
+        /// <summary>
+        /// The current display colour of this hit object.
+        /// </summary>
+        Bindable<Color4> DisplayColour { get; }
+    }
+}

osu.Game/Rulesets/UI/Scrolling/ScrollingHitObjectContainer.cs

@@ -19,6 +19,20 @@ namespace osu.Game.Rulesets.UI.Scrolling
         private readonly IBindable<double> timeRange = new BindableDouble();
         private readonly IBindable<ScrollingDirection> direction = new Bindable<ScrollingDirection>();
 
+        /// <summary>
+        /// Whether the scrolling direction is horizontal or vertical.
+        /// </summary>
+        private Direction scrollingAxis => direction.Value == ScrollingDirection.Left || direction.Value == ScrollingDirection.Right ? Direction.Horizontal : Direction.Vertical;
+
+        /// <summary>
+        /// The scrolling axis is inverted if objects temporally farther in the future have a smaller position value across the scrolling axis.
+        /// </summary>
+        /// <example>
+        /// <see cref="ScrollingDirection.Down"/> is inverted, because given two objects, one of which is at the current time and one of which is 1000ms in the future,
+        /// in the current time instant the future object is spatially above the current object, and therefore has a smaller value of the Y coordinate of its position.
+        /// </example>
+        private bool axisInverted => direction.Value == ScrollingDirection.Down || direction.Value == ScrollingDirection.Right;
+
         /// <summary>
         /// A set of top-level <see cref="DrawableHitObject"/>s which have an up-to-date layout.
         /// </summary>
@@ -48,99 +62,64 @@ namespace osu.Game.Rulesets.UI.Scrolling
         }
 
         /// <summary>
-        /// Given a position in screen space, return the time within this column.
+        /// Given a position at <paramref name="currentTime"/>, return the time of the object corresponding to the position.
         /// </summary>
-        public double TimeAtScreenSpacePosition(Vector2 screenSpacePosition)
+        /// <remarks>
+        /// If there are multiple valid time values, one arbitrary time is returned.
+        /// </remarks>
+        public double TimeAtPosition(float localPosition, double currentTime)
         {
-            // convert to local space of column so we can snap and fetch correct location.
-            Vector2 localPosition = ToLocalSpace(screenSpacePosition);
-
-            float position = 0;
-
-            switch (scrollingInfo.Direction.Value)
-            {
-                case ScrollingDirection.Up:
-                case ScrollingDirection.Down:
-                    position = localPosition.Y;
-                    break;
-
-                case ScrollingDirection.Right:
-                case ScrollingDirection.Left:
-                    position = localPosition.X;
-                    break;
-            }
-
-            flipPositionIfRequired(ref position);
-
-            return scrollingInfo.Algorithm.TimeAt(position, Time.Current, scrollingInfo.TimeRange.Value, scrollLength);
+            float scrollPosition = axisInverted ? scrollLength - localPosition : localPosition;
+            return scrollingInfo.Algorithm.TimeAt(scrollPosition, currentTime, timeRange.Value, scrollLength);
         }
 
         /// <summary>
-        /// Given a time, return the screen space position within this column.
+        /// Given a position at the current time in screen space, return the time of the object corresponding the position.
+        /// </summary>
+        /// <remarks>
+        /// If there are multiple valid time values, one arbitrary time is returned.
+        /// </remarks>
+        public double TimeAtScreenSpacePosition(Vector2 screenSpacePosition)
+        {
+            Vector2 localPosition = ToLocalSpace(screenSpacePosition);
+            return TimeAtPosition(scrollingAxis == Direction.Horizontal ? localPosition.X : localPosition.Y, Time.Current);
+        }
+
+        /// <summary>
+        /// Given a time, return the position along the scrolling axis within this <see cref="HitObjectContainer"/> at time <paramref name="currentTime"/>.
+        /// </summary>
+        public float PositionAtTime(double time, double currentTime)
+        {
+            float scrollPosition = scrollingInfo.Algorithm.PositionAt(time, currentTime, timeRange.Value, scrollLength);
+            return axisInverted ? scrollLength - scrollPosition : scrollPosition;
+        }
+
+        /// <summary>
+        /// Given a time, return the position along the scrolling axis within this <see cref="HitObjectContainer"/> at the current time.
+        /// </summary>
+        public float PositionAtTime(double time) => PositionAtTime(time, Time.Current);
+
+        /// <summary>
+        /// Given a time, return the screen space position within this <see cref="HitObjectContainer"/>.
+        /// In the non-scrolling axis, the center of this <see cref="HitObjectContainer"/> is returned.
         /// </summary>
         public Vector2 ScreenSpacePositionAtTime(double time)
         {
-            var pos = scrollingInfo.Algorithm.PositionAt(time, Time.Current, scrollingInfo.TimeRange.Value, scrollLength);
-
-            flipPositionIfRequired(ref pos);
-
-            switch (scrollingInfo.Direction.Value)
-            {
-                case ScrollingDirection.Up:
-                case ScrollingDirection.Down:
-                    return ToScreenSpace(new Vector2(getBreadth() / 2, pos));
-
-                default:
-                    return ToScreenSpace(new Vector2(pos, getBreadth() / 2));
-            }
+            float localPosition = PositionAtTime(time, Time.Current);
+            return scrollingAxis == Direction.Horizontal
+                ? ToScreenSpace(new Vector2(localPosition, DrawHeight / 2))
+                : ToScreenSpace(new Vector2(DrawWidth / 2, localPosition));
         }
 
-        private float scrollLength
+        /// <summary>
+        /// Given a start time and end time of a scrolling object, return the length of the object along the scrolling axis.
+        /// </summary>
+        public float LengthAtTime(double startTime, double endTime)
         {
-            get
-            {
-                switch (scrollingInfo.Direction.Value)
-                {
-                    case ScrollingDirection.Left:
-                    case ScrollingDirection.Right:
-                        return DrawWidth;
-
-                    default:
-                        return DrawHeight;
-                }
-            }
+            return scrollingInfo.Algorithm.GetLength(startTime, endTime, timeRange.Value, scrollLength);
         }
 
-        private float getBreadth()
-        {
-            switch (scrollingInfo.Direction.Value)
-            {
-                case ScrollingDirection.Up:
-                case ScrollingDirection.Down:
-                    return DrawWidth;
-
-                default:
-                    return DrawHeight;
-            }
-        }
-
-        private void flipPositionIfRequired(ref float position)
-        {
-            // We're dealing with screen coordinates in which the position decreases towards the centre of the screen resulting in an increase in start time.
-            // The scrolling algorithm instead assumes a top anchor meaning an increase in time corresponds to an increase in position,
-            // so when scrolling downwards the coordinates need to be flipped.
-
-            switch (scrollingInfo.Direction.Value)
-            {
-                case ScrollingDirection.Down:
-                    position = DrawHeight - position;
-                    break;
-
-                case ScrollingDirection.Right:
-                    position = DrawWidth - position;
-                    break;
-            }
-        }
+        private float scrollLength => scrollingAxis == Direction.Horizontal ? DrawWidth : DrawHeight;
 
         protected override void AddDrawable(HitObjectLifetimeEntry entry, DrawableHitObject drawable)
         {
@@ -237,18 +216,11 @@ namespace osu.Game.Rulesets.UI.Scrolling
         {
             if (hitObject.HitObject is IHasDuration e)
             {
-                switch (direction.Value)
-                {
-                    case ScrollingDirection.Up:
-                    case ScrollingDirection.Down:
-                        hitObject.Height = scrollingInfo.Algorithm.GetLength(hitObject.HitObject.StartTime, e.EndTime, timeRange.Value, scrollLength);
-                        break;
-
-                    case ScrollingDirection.Left:
-                    case ScrollingDirection.Right:
-                        hitObject.Width = scrollingInfo.Algorithm.GetLength(hitObject.HitObject.StartTime, e.EndTime, timeRange.Value, scrollLength);
-                        break;
-                }
+                float length = LengthAtTime(hitObject.HitObject.StartTime, e.EndTime);
+                if (scrollingAxis == Direction.Horizontal)
+                    hitObject.Width = length;
+                else
+                    hitObject.Height = length;
             }
 
             foreach (var obj in hitObject.NestedHitObjects)
@@ -262,24 +234,16 @@ namespace osu.Game.Rulesets.UI.Scrolling
 
         private void updatePosition(DrawableHitObject hitObject, double currentTime)
         {
-            switch (direction.Value)
-            {
-                case ScrollingDirection.Up:
-                    hitObject.Y = scrollingInfo.Algorithm.PositionAt(hitObject.HitObject.StartTime, currentTime, timeRange.Value, scrollLength);
-                    break;
+            float position = PositionAtTime(hitObject.HitObject.StartTime, currentTime);
 
-                case ScrollingDirection.Down:
-                    hitObject.Y = -scrollingInfo.Algorithm.PositionAt(hitObject.HitObject.StartTime, currentTime, timeRange.Value, scrollLength);
-                    break;
+            // The position returned from `PositionAtTime` is assuming the `TopLeft` anchor.
+            // A correction is needed because the hit objects are using a different anchor for each direction (e.g. `BottomCentre` for `Bottom` direction).
+            float anchorCorrection = axisInverted ? scrollLength : 0;
 
-                case ScrollingDirection.Left:
-                    hitObject.X = scrollingInfo.Algorithm.PositionAt(hitObject.HitObject.StartTime, currentTime, timeRange.Value, scrollLength);
-                    break;
-
-                case ScrollingDirection.Right:
-                    hitObject.X = -scrollingInfo.Algorithm.PositionAt(hitObject.HitObject.StartTime, currentTime, timeRange.Value, scrollLength);
-                    break;
-            }
+            if (scrollingAxis == Direction.Horizontal)
+                hitObject.X = position - anchorCorrection;
+            else
+                hitObject.Y = position - anchorCorrection;
         }
     }
 }

osu.Game/Screens/Edit/Compose/Components/Timeline/TimelineHitObjectBlueprint.cs

@@ -39,6 +39,7 @@ namespace osu.Game.Screens.Edit.Compose.Components.Timeline
 
         private Bindable<int> indexInCurrentComboBindable;
         private Bindable<int> comboIndexBindable;
+        private Bindable<Color4> displayColourBindable;
 
         private readonly ExtendableCircle circle;
         private readonly Border border;
@@ -108,44 +109,64 @@ namespace osu.Game.Screens.Edit.Compose.Components.Timeline
         {
             base.LoadComplete();
 
-            if (Item is IHasComboInformation comboInfo)
+            switch (Item)
             {
-                indexInCurrentComboBindable = comboInfo.IndexInCurrentComboBindable.GetBoundCopy();
-                indexInCurrentComboBindable.BindValueChanged(_ => updateComboIndex(), true);
+                case IHasDisplayColour displayColour:
+                    displayColourBindable = displayColour.DisplayColour.GetBoundCopy();
+                    displayColourBindable.BindValueChanged(_ => updateColour(), true);
+                    break;
 
-                comboIndexBindable = comboInfo.ComboIndexBindable.GetBoundCopy();
-                comboIndexBindable.BindValueChanged(_ => updateComboColour(), true);
+                case IHasComboInformation comboInfo:
+                    indexInCurrentComboBindable = comboInfo.IndexInCurrentComboBindable.GetBoundCopy();
+                    indexInCurrentComboBindable.BindValueChanged(_ => updateComboIndex(), true);
 
-                skin.SourceChanged += updateComboColour;
+                    comboIndexBindable = comboInfo.ComboIndexBindable.GetBoundCopy();
+                    comboIndexBindable.BindValueChanged(_ => updateColour(), true);
+
+                    skin.SourceChanged += updateColour;
+                    break;
             }
         }
 
         protected override void OnSelected()
         {
             // base logic hides selected blueprints when not selected, but timeline doesn't do that.
-            updateComboColour();
+            updateColour();
         }
 
         protected override void OnDeselected()
         {
             // base logic hides selected blueprints when not selected, but timeline doesn't do that.
-            updateComboColour();
+            updateColour();
         }
 
         private void updateComboIndex() => comboIndexText.Text = (indexInCurrentComboBindable.Value + 1).ToString();
 
-        private void updateComboColour()
+        private void updateColour()
         {
-            if (!(Item is IHasComboInformation combo))
-                return;
+            Color4 colour;
 
-            var comboColours = skin.GetConfig<GlobalSkinColours, IReadOnlyList<Color4>>(GlobalSkinColours.ComboColours)?.Value ?? Array.Empty<Color4>();
-            var comboColour = combo.GetComboColour(comboColours);
+            switch (Item)
+            {
+                case IHasDisplayColour displayColour:
+                    colour = displayColour.DisplayColour.Value;
+                    break;
+
+                case IHasComboInformation combo:
+                {
+                    var comboColours = skin.GetConfig<GlobalSkinColours, IReadOnlyList<Color4>>(GlobalSkinColours.ComboColours)?.Value ?? Array.Empty<Color4>();
+                    colour = combo.GetComboColour(comboColours);
+                    break;
+                }
+
+                default:
+                    return;
+            }
 
             if (IsSelected)
             {
                 border.Show();
-                comboColour = comboColour.Lighten(0.3f);
+                colour = colour.Lighten(0.3f);
             }
             else
             {
@@ -153,9 +174,9 @@ namespace osu.Game.Screens.Edit.Compose.Components.Timeline
             }
 
             if (Item is IHasDuration duration && duration.Duration > 0)
-                circle.Colour = ColourInfo.GradientHorizontal(comboColour, comboColour.Lighten(0.4f));
+                circle.Colour = ColourInfo.GradientHorizontal(colour, colour.Lighten(0.4f));
             else
-                circle.Colour = comboColour;
+                circle.Colour = colour;
 
             var col = circle.Colour.TopLeft.Linear;
             colouredComponents.Colour = OsuColour.ForegroundTextColourFor(col);

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

@@ -0,0 +1,20 @@
+// 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.Beatmaps;
+using osu.Game.Graphics.UserInterface;
+using osu.Game.Graphics.UserInterfaceV2;
+
+namespace osu.Game.Screens.Edit.Setup
+{
+    internal class LabelledRomanisedTextBox : LabelledTextBox
+    {
+        protected override OsuTextBox CreateTextBox() => new RomanisedTextBox();
+
+        private class RomanisedTextBox : OsuTextBox
+        {
+            protected override bool CanAddCharacter(char character)
+                => MetadataUtils.IsRomanised(character);
+        }
+    }
+}

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

@@ -3,79 +3,117 @@
 
 using System.Linq;
 using osu.Framework.Allocation;
-using osu.Framework.Graphics;
 using osu.Framework.Graphics.UserInterface;
 using osu.Framework.Localisation;
+using osu.Game.Beatmaps;
 using osu.Game.Graphics.UserInterfaceV2;
 
 namespace osu.Game.Screens.Edit.Setup
 {
     internal class MetadataSection : SetupSection
     {
-        private LabelledTextBox artistTextBox;
-        private LabelledTextBox titleTextBox;
+        protected LabelledTextBox ArtistTextBox;
+        protected LabelledTextBox RomanisedArtistTextBox;
+
+        protected LabelledTextBox TitleTextBox;
+        protected LabelledTextBox RomanisedTitleTextBox;
+
         private LabelledTextBox creatorTextBox;
         private LabelledTextBox difficultyTextBox;
+        private LabelledTextBox sourceTextBox;
+        private LabelledTextBox tagsTextBox;
 
         public override LocalisableString Title => "Metadata";
 
         [BackgroundDependencyLoader]
         private void load()
         {
-            Children = new Drawable[]
+            var metadata = Beatmap.Metadata;
+
+            Children = new[]
             {
-                artistTextBox = new LabelledTextBox
-                {
-                    Label = "Artist",
-                    FixedLabelWidth = LABEL_WIDTH,
-                    Current = { Value = Beatmap.Metadata.Artist },
-                    TabbableContentContainer = this
-                },
-                titleTextBox = new LabelledTextBox
-                {
-                    Label = "Title",
-                    FixedLabelWidth = LABEL_WIDTH,
-                    Current = { Value = Beatmap.Metadata.Title },
-                    TabbableContentContainer = this
-                },
-                creatorTextBox = new LabelledTextBox
-                {
-                    Label = "Creator",
-                    FixedLabelWidth = LABEL_WIDTH,
-                    Current = { Value = Beatmap.Metadata.AuthorString },
-                    TabbableContentContainer = this
-                },
-                difficultyTextBox = new LabelledTextBox
-                {
-                    Label = "Difficulty Name",
-                    FixedLabelWidth = LABEL_WIDTH,
-                    Current = { Value = Beatmap.BeatmapInfo.Version },
-                    TabbableContentContainer = this
-                },
+                ArtistTextBox = createTextBox<LabelledTextBox>("Artist",
+                    !string.IsNullOrEmpty(metadata.ArtistUnicode) ? metadata.ArtistUnicode : metadata.Artist),
+                RomanisedArtistTextBox = createTextBox<LabelledRomanisedTextBox>("Romanised Artist",
+                    !string.IsNullOrEmpty(metadata.Artist) ? metadata.Artist : MetadataUtils.StripNonRomanisedCharacters(metadata.ArtistUnicode)),
+
+                Empty(),
+
+                TitleTextBox = createTextBox<LabelledTextBox>("Title",
+                    !string.IsNullOrEmpty(metadata.TitleUnicode) ? metadata.TitleUnicode : metadata.Title),
+                RomanisedTitleTextBox = createTextBox<LabelledRomanisedTextBox>("Romanised Title",
+                    !string.IsNullOrEmpty(metadata.Title) ? metadata.Title : MetadataUtils.StripNonRomanisedCharacters(metadata.ArtistUnicode)),
+
+                Empty(),
+
+                creatorTextBox = createTextBox<LabelledTextBox>("Creator", metadata.AuthorString),
+                difficultyTextBox = createTextBox<LabelledTextBox>("Difficulty Name", Beatmap.BeatmapInfo.Version),
+                sourceTextBox = createTextBox<LabelledTextBox>("Source", metadata.Source),
+                tagsTextBox = createTextBox<LabelledTextBox>("Tags", metadata.Tags)
             };
 
             foreach (var item in Children.OfType<LabelledTextBox>())
                 item.OnCommit += onCommit;
         }
 
+        private TTextBox createTextBox<TTextBox>(string label, string initialValue)
+            where TTextBox : LabelledTextBox, new()
+            => new TTextBox
+            {
+                Label = label,
+                FixedLabelWidth = LABEL_WIDTH,
+                Current = { Value = initialValue },
+                TabbableContentContainer = this
+            };
+
         protected override void LoadComplete()
         {
             base.LoadComplete();
 
-            if (string.IsNullOrEmpty(artistTextBox.Current.Value))
-                GetContainingInputManager().ChangeFocus(artistTextBox);
+            if (string.IsNullOrEmpty(ArtistTextBox.Current.Value))
+                GetContainingInputManager().ChangeFocus(ArtistTextBox);
+
+            ArtistTextBox.Current.BindValueChanged(artist => transferIfRomanised(artist.NewValue, RomanisedArtistTextBox));
+            TitleTextBox.Current.BindValueChanged(title => transferIfRomanised(title.NewValue, RomanisedTitleTextBox));
+            updateReadOnlyState();
+        }
+
+        private void transferIfRomanised(string value, LabelledTextBox target)
+        {
+            if (MetadataUtils.IsRomanised(value))
+                target.Current.Value = value;
+
+            updateReadOnlyState();
+            updateMetadata();
+        }
+
+        private void updateReadOnlyState()
+        {
+            RomanisedArtistTextBox.ReadOnly = MetadataUtils.IsRomanised(ArtistTextBox.Current.Value);
+            RomanisedTitleTextBox.ReadOnly = MetadataUtils.IsRomanised(TitleTextBox.Current.Value);
         }
 
         private void onCommit(TextBox sender, bool newText)
         {
             if (!newText) return;
 
-            // for now, update these on commit rather than making BeatmapMetadata bindables.
+            // for now, update on commit rather than making BeatmapMetadata bindables.
             // after switching database engines we can reconsider if switching to bindables is a good direction.
-            Beatmap.Metadata.Artist = artistTextBox.Current.Value;
-            Beatmap.Metadata.Title = titleTextBox.Current.Value;
+            updateMetadata();
+        }
+
+        private void updateMetadata()
+        {
+            Beatmap.Metadata.ArtistUnicode = ArtistTextBox.Current.Value;
+            Beatmap.Metadata.Artist = RomanisedArtistTextBox.Current.Value;
+
+            Beatmap.Metadata.TitleUnicode = TitleTextBox.Current.Value;
+            Beatmap.Metadata.Title = RomanisedTitleTextBox.Current.Value;
+
             Beatmap.Metadata.AuthorString = creatorTextBox.Current.Value;
             Beatmap.BeatmapInfo.Version = difficultyTextBox.Current.Value;
+            Beatmap.Metadata.Source = sourceTextBox.Current.Value;
+            Beatmap.Metadata.Tags = tagsTextBox.Current.Value;
         }
     }
 }

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

@@ -59,7 +59,7 @@ namespace osu.Game.Screens.Edit.Setup
                     {
                         RelativeSizeAxes = Axes.X,
                         AutoSizeAxes = Axes.Y,
-                        Spacing = new Vector2(20),
+                        Spacing = new Vector2(10),
                         Direction = FillDirection.Vertical,
                     }
                 }

osu.Game/Screens/Edit/Timing/ControlPointTable.cs

@@ -26,7 +26,7 @@ namespace osu.Game.Screens.Edit.Timing
         [Resolved]
         private EditorClock clock { get; set; }
 
-        public const float TIMING_COLUMN_WIDTH = 220;
+        public const float TIMING_COLUMN_WIDTH = 230;
 
         public IEnumerable<ControlPointGroup> ControlGroups
         {
@@ -91,7 +91,7 @@ namespace osu.Game.Screens.Edit.Timing
                         {
                             Text = group.Time.ToEditorFormattedString(),
                             Font = OsuFont.GetFont(size: TEXT_SIZE, weight: FontWeight.Bold),
-                            Width = 60,
+                            Width = 70,
                             Anchor = Anchor.CentreLeft,
                             Origin = Anchor.CentreLeft,
                         },

osu.Game/Screens/Ranking/Expanded/Accuracy/AccuracyCircle.cs

@@ -5,14 +5,18 @@ using System;
 using System.Linq;
 using osu.Framework.Allocation;
 using osu.Framework.Audio;
+using osu.Framework.Bindables;
 using osu.Framework.Extensions.Color4Extensions;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Colour;
 using osu.Framework.Graphics.Containers;
+using osu.Framework.Platform;
 using osu.Framework.Utils;
+using osu.Game.Audio;
 using osu.Game.Graphics;
 using osu.Game.Rulesets.Mods;
 using osu.Game.Scoring;
+using osu.Game.Skinning;
 using osuTK;
 
 namespace osu.Game.Screens.Ranking.Expanded.Accuracy
@@ -79,13 +83,28 @@ namespace osu.Game.Screens.Ranking.Expanded.Accuracy
         private Container<RankBadge> badges;
         private RankText rankText;
 
-        public AccuracyCircle(ScoreInfo score)
+        private PoolableSkinnableSample scoreTickSound;
+        private PoolableSkinnableSample badgeTickSound;
+        private PoolableSkinnableSample badgeMaxSound;
+        private PoolableSkinnableSample swooshUpSound;
+        private PoolableSkinnableSample rankImpactSound;
+        private PoolableSkinnableSample rankApplauseSound;
+
+        private readonly Bindable<double> tickPlaybackRate = new Bindable<double>();
+
+        private double lastTickPlaybackTime;
+        private bool isTicking;
+
+        private readonly bool withFlair;
+
+        public AccuracyCircle(ScoreInfo score, bool withFlair = false)
         {
             this.score = score;
+            this.withFlair = withFlair;
         }
 
         [BackgroundDependencyLoader]
-        private void load(AudioManager audio)
+        private void load(GameHost host)
         {
             InternalChildren = new Drawable[]
             {
@@ -204,14 +223,19 @@ namespace osu.Game.Screens.Ranking.Expanded.Accuracy
                 },
                 rankText = new RankText(score.Rank)
             };
-        }
 
-        private ScoreRank getRank(ScoreRank rank)
-        {
-            foreach (var mod in score.Mods.OfType<IApplicableToScoreProcessor>())
-                rank = mod.AdjustRank(rank, score.Accuracy);
-
-            return rank;
+            if (withFlair)
+            {
+                AddRangeInternal(new Drawable[]
+                {
+                    rankImpactSound = new PoolableSkinnableSample(new SampleInfo(impactSampleName)),
+                    rankApplauseSound = new PoolableSkinnableSample(new SampleInfo(@"applause", applauseSampleName)),
+                    scoreTickSound = new PoolableSkinnableSample(new SampleInfo(@"Results/score-tick")),
+                    badgeTickSound = new PoolableSkinnableSample(new SampleInfo(@"Results/badge-dink")),
+                    badgeMaxSound = new PoolableSkinnableSample(new SampleInfo(@"Results/badge-dink-max")),
+                    swooshUpSound = new PoolableSkinnableSample(new SampleInfo(@"Results/swoosh-up")),
+                });
+            }
         }
 
         protected override void LoadComplete()
@@ -220,33 +244,170 @@ namespace osu.Game.Screens.Ranking.Expanded.Accuracy
 
             this.ScaleTo(0).Then().ScaleTo(1, APPEAR_DURATION, Easing.OutQuint);
 
-            using (BeginDelayedSequence(RANK_CIRCLE_TRANSFORM_DELAY, true))
+            if (withFlair)
+            {
+                const double swoosh_pre_delay = 443f;
+                const double swoosh_volume = 0.4f;
+
+                this.Delay(swoosh_pre_delay).Schedule(() =>
+                {
+                    swooshUpSound.VolumeTo(swoosh_volume);
+                    swooshUpSound.Play();
+                });
+            }
+
+            using (BeginDelayedSequence(RANK_CIRCLE_TRANSFORM_DELAY))
                 innerMask.FillTo(1f, RANK_CIRCLE_TRANSFORM_DURATION, ACCURACY_TRANSFORM_EASING);
 
-            using (BeginDelayedSequence(ACCURACY_TRANSFORM_DELAY, true))
+            using (BeginDelayedSequence(ACCURACY_TRANSFORM_DELAY))
             {
                 double targetAccuracy = score.Rank == ScoreRank.X || score.Rank == ScoreRank.XH ? 1 : Math.Min(1 - virtual_ss_percentage, score.Accuracy);
 
                 accuracyCircle.FillTo(targetAccuracy, ACCURACY_TRANSFORM_DURATION, ACCURACY_TRANSFORM_EASING);
 
+                if (withFlair)
+                {
+                    Schedule(() =>
+                    {
+                        const double score_tick_debounce_rate_start = 18f;
+                        const double score_tick_debounce_rate_end = 300f;
+                        const double score_tick_volume_start = 0.6f;
+                        const double score_tick_volume_end = 1.0f;
+
+                        this.TransformBindableTo(tickPlaybackRate, score_tick_debounce_rate_start);
+                        this.TransformBindableTo(tickPlaybackRate, score_tick_debounce_rate_end, ACCURACY_TRANSFORM_DURATION, Easing.OutSine);
+
+                        scoreTickSound.FrequencyTo(1 + targetAccuracy, ACCURACY_TRANSFORM_DURATION, Easing.OutSine);
+                        scoreTickSound.VolumeTo(score_tick_volume_start).Then().VolumeTo(score_tick_volume_end, ACCURACY_TRANSFORM_DURATION, Easing.OutSine);
+
+                        isTicking = true;
+                    });
+                }
+
+                int badgeNum = 0;
+
                 foreach (var badge in badges)
                 {
                     if (badge.Accuracy > score.Accuracy)
                         continue;
 
-                    using (BeginDelayedSequence(inverseEasing(ACCURACY_TRANSFORM_EASING, Math.Min(1 - virtual_ss_percentage, badge.Accuracy) / targetAccuracy) * ACCURACY_TRANSFORM_DURATION, true))
+                    using (BeginDelayedSequence(inverseEasing(ACCURACY_TRANSFORM_EASING, Math.Min(1 - virtual_ss_percentage, badge.Accuracy) / targetAccuracy) * ACCURACY_TRANSFORM_DURATION))
                     {
                         badge.Appear();
+
+                        if (withFlair)
+                        {
+                            Schedule(() =>
+                            {
+                                var dink = badgeNum < badges.Count - 1 ? badgeTickSound : badgeMaxSound;
+
+                                dink.FrequencyTo(1 + badgeNum++ * 0.05);
+                                dink.Play();
+                            });
+                        }
                     }
                 }
 
-                using (BeginDelayedSequence(TEXT_APPEAR_DELAY, true))
+                using (BeginDelayedSequence(TEXT_APPEAR_DELAY))
                 {
                     rankText.Appear();
+
+                    if (!withFlair) return;
+
+                    Schedule(() =>
+                    {
+                        isTicking = false;
+                        rankImpactSound.Play();
+                    });
+
+                    const double applause_pre_delay = 545f;
+                    const double applause_volume = 0.8f;
+
+                    using (BeginDelayedSequence(applause_pre_delay))
+                    {
+                        Schedule(() =>
+                        {
+                            rankApplauseSound.VolumeTo(applause_volume);
+                            rankApplauseSound.Play();
+                        });
+                    }
                 }
             }
         }
 
+        protected override void Update()
+        {
+            base.Update();
+
+            if (isTicking && Clock.CurrentTime - lastTickPlaybackTime >= tickPlaybackRate.Value)
+            {
+                scoreTickSound?.Play();
+                lastTickPlaybackTime = Clock.CurrentTime;
+            }
+        }
+
+        private string applauseSampleName
+        {
+            get
+            {
+                switch (score.Rank)
+                {
+                    default:
+                    case ScoreRank.D:
+                        return @"Results/applause-d";
+
+                    case ScoreRank.C:
+                        return @"Results/applause-c";
+
+                    case ScoreRank.B:
+                        return @"Results/applause-b";
+
+                    case ScoreRank.A:
+                        return @"Results/applause-a";
+
+                    case ScoreRank.S:
+                    case ScoreRank.SH:
+                    case ScoreRank.X:
+                    case ScoreRank.XH:
+                        return @"Results/applause-s";
+                }
+            }
+        }
+
+        private string impactSampleName
+        {
+            get
+            {
+                switch (score.Rank)
+                {
+                    default:
+                    case ScoreRank.D:
+                        return @"Results/rank-impact-fail-d";
+
+                    case ScoreRank.C:
+                    case ScoreRank.B:
+                        return @"Results/rank-impact-fail";
+
+                    case ScoreRank.A:
+                    case ScoreRank.S:
+                    case ScoreRank.SH:
+                        return @"Results/rank-impact-pass";
+
+                    case ScoreRank.X:
+                    case ScoreRank.XH:
+                        return @"Results/rank-impact-pass-ss";
+                }
+            }
+        }
+
+        private ScoreRank getRank(ScoreRank rank)
+        {
+            foreach (var mod in score.Mods.OfType<IApplicableToScoreProcessor>())
+                rank = mod.AdjustRank(rank, score.Accuracy);
+
+            return rank;
+        }
+
         private double inverseEasing(Easing easing, double targetValue)
         {
             double test = 0;

osu.Game/Screens/Ranking/Expanded/ExpandedPanelMiddleContent.cs

@@ -122,7 +122,7 @@ namespace osu.Game.Screens.Ranking.Expanded
                                     Margin = new MarginPadding { Top = 40 },
                                     RelativeSizeAxes = Axes.X,
                                     Height = 230,
-                                    Child = new AccuracyCircle(score)
+                                    Child = new AccuracyCircle(score, withFlair)
                                     {
                                         Anchor = Anchor.Centre,
                                         Origin = Anchor.Centre,

osu.Game/Screens/Ranking/ResultsScreen.cs

@@ -12,7 +12,6 @@ using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Shapes;
 using osu.Framework.Input.Bindings;
 using osu.Framework.Screens;
-using osu.Game.Audio;
 using osu.Game.Graphics;
 using osu.Game.Graphics.Containers;
 using osu.Game.Graphics.UserInterface;
@@ -20,20 +19,13 @@ using osu.Game.Input.Bindings;
 using osu.Game.Online.API;
 using osu.Game.Scoring;
 using osu.Game.Screens.Play;
-using osu.Game.Screens.Ranking.Expanded.Accuracy;
 using osu.Game.Screens.Ranking.Statistics;
-using osu.Game.Skinning;
 using osuTK;
 
 namespace osu.Game.Screens.Ranking
 {
     public abstract class ResultsScreen : ScreenWithBeatmapBackground, IKeyBindingHandler<GlobalAction>
     {
-        /// <summary>
-        /// Delay before the default applause sound should be played, in order to match the grade display timing in <see cref="AccuracyCircle"/>.
-        /// </summary>
-        public const double APPLAUSE_DELAY = AccuracyCircle.ACCURACY_TRANSFORM_DELAY + AccuracyCircle.TEXT_APPEAR_DELAY + ScorePanel.RESIZE_DURATION + ScorePanel.TOP_LAYER_EXPAND_DELAY - 1440;
-
         protected const float BACKGROUND_BLUR = 20;
         private static readonly float screen_height = 768 - TwoLayerButton.SIZE_EXTENDED.Y;
 
@@ -64,8 +56,6 @@ namespace osu.Game.Screens.Ranking
         private readonly bool allowRetry;
         private readonly bool allowWatchingReplay;
 
-        private SkinnableSound applauseSound;
-
         protected ResultsScreen(ScoreInfo score, bool allowRetry, bool allowWatchingReplay = true)
         {
             Score = score;
@@ -156,13 +146,6 @@ namespace osu.Game.Screens.Ranking
                 bool shouldFlair = player != null && Score.Mods.All(m => m.UserPlayable);
 
                 ScorePanelList.AddScore(Score, shouldFlair);
-
-                if (shouldFlair)
-                {
-                    AddInternal(applauseSound = Score.Rank >= ScoreRank.A
-                        ? new SkinnableSound(new SampleInfo("Results/rankpass", "applause"))
-                        : new SkinnableSound(new SampleInfo("Results/rankfail")));
-                }
             }
 
             if (allowWatchingReplay)
@@ -200,9 +183,6 @@ namespace osu.Game.Screens.Ranking
                 api.Queue(req);
 
             statisticsPanel.State.BindValueChanged(onStatisticsStateChanged, true);
-
-            using (BeginDelayedSequence(APPLAUSE_DELAY))
-                Schedule(() => applauseSound?.Play());
         }
 
         protected override void Update()

osu.Game/Screens/Select/FilterQueryParser.cs

@@ -37,6 +37,7 @@ namespace osu.Game.Screens.Select
         {
             switch (key)
             {
+                case "star":
                 case "stars":
                     return TryUpdateCriteriaRange(ref criteria.StarDifficulty, op, value, 0.01d / 2);
 

osu.Game/Screens/Select/Leaderboards/BeatmapLeaderboard.cs

@@ -44,6 +44,8 @@ namespace osu.Game.Screens.Select.Leaderboards
 
         private IBindable<WeakReference<ScoreInfo>> itemRemoved;
 
+        private IBindable<WeakReference<ScoreInfo>> itemAdded;
+
         /// <summary>
         /// Whether to apply the game's currently selected mods as a filter when retrieving scores.
         /// </summary>
@@ -85,6 +87,9 @@ namespace osu.Game.Screens.Select.Leaderboards
 
             itemRemoved = scoreManager.ItemRemoved.GetBoundCopy();
             itemRemoved.BindValueChanged(onScoreRemoved);
+
+            itemAdded = scoreManager.ItemUpdated.GetBoundCopy();
+            itemAdded.BindValueChanged(onScoreAdded);
         }
 
         protected override void Reset()
@@ -93,7 +98,25 @@ namespace osu.Game.Screens.Select.Leaderboards
             TopScore = null;
         }
 
-        private void onScoreRemoved(ValueChangedEvent<WeakReference<ScoreInfo>> score) => Schedule(RefreshScores);
+        private void onScoreRemoved(ValueChangedEvent<WeakReference<ScoreInfo>> score) =>
+            scoreStoreChanged(score);
+
+        private void onScoreAdded(ValueChangedEvent<WeakReference<ScoreInfo>> score) =>
+            scoreStoreChanged(score);
+
+        private void scoreStoreChanged(ValueChangedEvent<WeakReference<ScoreInfo>> score)
+        {
+            if (Scope != BeatmapLeaderboardScope.Local)
+                return;
+
+            if (score.NewValue.TryGetTarget(out var scoreInfo))
+            {
+                if (Beatmap?.ID != scoreInfo.BeatmapInfoID)
+                    return;
+            }
+
+            RefreshScores();
+        }
 
         protected override bool IsOnlineScope => Scope != BeatmapLeaderboardScope.Local;
 

osu.Game/Skinning/LegacyHealthDisplay.cs

@@ -148,9 +148,9 @@ namespace osu.Game.Skinning
             }
         }
 
-        internal class LegacyOldStyleFill : LegacyHealthPiece
+        internal abstract class LegacyFill : LegacyHealthPiece
         {
-            public LegacyOldStyleFill(ISkin skin)
+            protected LegacyFill(ISkin skin)
             {
                 // required for sizing correctly..
                 var firstFrame = getTexture(skin, "colour-0");
@@ -162,27 +162,29 @@ namespace osu.Game.Skinning
                 }
                 else
                 {
-                    InternalChild = skin.GetAnimation("scorebar-colour", true, true, startAtCurrentTime: false, applyConfigFrameRate: true) ?? Drawable.Empty();
+                    InternalChild = skin.GetAnimation("scorebar-colour", true, true, startAtCurrentTime: false, applyConfigFrameRate: true) ?? Empty();
                     Size = new Vector2(firstFrame.DisplayWidth, firstFrame.DisplayHeight);
                 }
 
-                Position = new Vector2(3, 10) * 1.6f;
                 Masking = true;
             }
         }
 
-        internal class LegacyNewStyleFill : LegacyHealthPiece
+        internal class LegacyOldStyleFill : LegacyFill
+        {
+            public LegacyOldStyleFill(ISkin skin)
+                : base(skin)
+            {
+                Position = new Vector2(3, 10) * 1.6f;
+            }
+        }
+
+        internal class LegacyNewStyleFill : LegacyFill
         {
             public LegacyNewStyleFill(ISkin skin)
+                : base(skin)
             {
-                InternalChild = new Sprite
-                {
-                    Texture = getTexture(skin, "colour"),
-                };
-
-                Size = InternalChild.Size;
                 Position = new Vector2(7.5f, 7.8f) * 1.6f;
-                Masking = true;
             }
 
             protected override void Update()

osu.Game/Tests/Visual/OsuManualInputManagerTestScene.cs

@@ -4,7 +4,6 @@
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Shapes;
-using osu.Framework.Input;
 using osu.Framework.Testing.Input;
 using osu.Game.Graphics.Cursor;
 using osu.Game.Graphics.Sprites;
@@ -49,7 +48,7 @@ namespace osu.Game.Tests.Visual
                 InputManager = new ManualInputManager
                 {
                     UseParentInput = true,
-                    Child = new PlatformActionContainer().WithChild(mainContent)
+                    Child = mainContent
                 },
                 new Container
                 {

osu.Game/Users/Drawables/DrawableAvatar.cs

@@ -31,7 +31,9 @@ namespace osu.Game.Users.Drawables
         private void load(LargeTextureStore textures)
         {
             if (user != null && user.Id > 1)
-                Texture = textures.Get(user.AvatarUrl);
+                // TODO: The fallback here should not need to exist. Users should be looked up and populated via UserLookupCache or otherwise
+                // in remaining cases where this is required (chat tabs, local leaderboard), at which point this should be removed.
+                Texture = textures.Get(user.AvatarUrl ?? $@"https://a.ppy.sh/{user.Id}");
 
             Texture ??= textures.Get(@"Online/avatar-guest");
         }

osu.Game/osu.Game.csproj

@@ -30,12 +30,12 @@
     <PackageReference Include="Microsoft.Extensions.Configuration.Abstractions" Version="5.0.0" />
     <PackageReference Include="Microsoft.NETCore.Targets" Version="3.1.0" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
-    <PackageReference Include="ppy.LocalisationAnalyser" Version="2021.525.0">
+    <PackageReference Include="ppy.LocalisationAnalyser" Version="2021.608.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="ppy.osu.Framework" Version="2021.609.0" />
-    <PackageReference Include="ppy.osu.Game.Resources" Version="2021.525.0" />
+    <PackageReference Include="ppy.osu.Framework" Version="2021.614.0" />
+    <PackageReference Include="ppy.osu.Game.Resources" Version="2021.614.0" />
     <PackageReference Include="Sentry" Version="3.4.0" />
     <PackageReference Include="SharpCompress" Version="0.28.2" />
     <PackageReference Include="NUnit" Version="3.13.2" />

osu.iOS.props

@@ -70,8 +70,8 @@
     <Reference Include="System.Net.Http" />
   </ItemGroup>
   <ItemGroup Label="Package References">
-    <PackageReference Include="ppy.osu.Framework.iOS" Version="2021.609.0" />
-    <PackageReference Include="ppy.osu.Game.Resources" Version="2021.525.0" />
+    <PackageReference Include="ppy.osu.Framework.iOS" Version="2021.614.0" />
+    <PackageReference Include="ppy.osu.Game.Resources" Version="2021.614.0" />
   </ItemGroup>
   <!-- See https://github.com/dotnet/runtime/issues/35988 (can be removed after Xamarin uses net5.0 / net6.0) -->
   <PropertyGroup>
@@ -93,7 +93,7 @@
     <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="2.2.6" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite.Core" Version="2.2.6" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
-    <PackageReference Include="ppy.osu.Framework" Version="2021.609.0" />
+    <PackageReference Include="ppy.osu.Framework" Version="2021.614.0" />
     <PackageReference Include="SharpCompress" Version="0.28.2" />
     <PackageReference Include="NUnit" Version="3.13.2" />
     <PackageReference Include="SharpRaven" Version="2.4.0" />