Add localisation support for all new strings

osu.Game/Localisation/CommonStrings.cs

@@ -19,6 +19,16 @@ namespace osu.Game.Localisation
         /// </summary>
         public static LocalisableString Clear => new TranslatableString(getKey(@"clear"), @"Clear");
 
+        /// <summary>
+        /// "Back"
+        /// </summary>
+        public static LocalisableString Back => new TranslatableString(getKey(@"back"), @"Back");
+
+        /// <summary>
+        /// "Finish"
+        /// </summary>
+        public static LocalisableString Finish => new TranslatableString(getKey(@"finish"), @"Finish");
+
         /// <summary>
         /// "Enabled"
         /// </summary>

osu.Game/Localisation/FirstRunSetupOverlayStrings.cs

@@ -0,0 +1,58 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using osu.Framework.Localisation;
+
+namespace osu.Game.Localisation
+{
+    public static class FirstRunSetupOverlayStrings
+    {
+        private const string prefix = @"osu.Game.Resources.Localisation.FirstRunSetupOverlay";
+
+        /// <summary>
+        /// "Get started"
+        /// </summary>
+        public static LocalisableString GetStarted => new TranslatableString(getKey(@"get_started"), @"Get started");
+
+        /// <summary>
+        /// "Click to resume first-run setup at any point"
+        /// </summary>
+        public static LocalisableString ClickToResumeFirstRunSetupAtAnyPoint => new TranslatableString(getKey(@"click_to_resume_first_run_setup_at_any_point"), @"Click to resume first-run setup at any point");
+
+        /// <summary>
+        /// "First-run setup"
+        /// </summary>
+        public static LocalisableString FirstRunSetup => new TranslatableString(getKey(@"first_run_setup"), @"First-run setup");
+
+        /// <summary>
+        /// "Setup osu! to suit you"
+        /// </summary>
+        public static LocalisableString SetupOsuToSuitYou => new TranslatableString(getKey(@"setup_osu_to_suit_you"), @"Setup osu! to suit you");
+
+        /// <summary>
+        /// "Welcome"
+        /// </summary>
+        public static LocalisableString Welcome => new TranslatableString(getKey(@"welcome"), @"Welcome");
+
+        /// <summary>
+        /// "Welcome to the first-run setup guide!
+        ///
+        /// osu! is a very configurable game, and diving straight into the settings can sometimes be overwhelming. This guide will help you get the important choices out of the way to ensure a great first experience!"
+        /// </summary>
+        public static LocalisableString WelcomeDescription => new TranslatableString(getKey(@"welcome_description"), @"Welcome to the first-run setup guide!
+
+osu! is a very configurable game, and diving straight into the settings can sometimes be overwhelming. This guide will help you get the important choices out of the way to ensure a great first experience!");
+
+        /// <summary>
+        /// "The size of the osu! user interface size can be adjusted to your liking."
+        /// </summary>
+        public static LocalisableString UIScaleDescription => new TranslatableString(getKey(@"ui_scale_description"), @"The size of the osu! user interface size can be adjusted to your liking.");
+
+        /// <summary>
+        /// "Next ({0})"
+        /// </summary>
+        public static LocalisableString Next(LocalisableString nextStepDescription) => new TranslatableString(getKey(@"next"), @"Next ({0})", nextStepDescription);
+
+        private static string getKey(string key) => $@"{prefix}:{key}";
+    }
+}

osu.Game/Localisation/GeneralSettingsStrings.cs

@@ -59,6 +59,11 @@ namespace osu.Game.Localisation
         /// </summary>
         public static LocalisableString ChangeFolderLocation => new TranslatableString(getKey(@"change_folder_location"), @"Change folder location...");
 
+        /// <summary>
+        /// "Run setup wizard"
+        /// </summary>
+        public static LocalisableString RunSetupWizard => new TranslatableString(getKey(@"run_setup_wizard"), @"Run setup wizard");
+
         private static string getKey(string key) => $"{prefix}:{key}";
     }
 }

osu.Game/Overlays/FirstRunSetup/ScreenUIScale.cs

@@ -53,7 +53,7 @@ namespace osu.Game.Overlays.FirstRunSetup
                                 {
                                     new OsuTextFlowContainer(cp => cp.Font = OsuFont.Default.With(size: 24))
                                     {
-                                        Text = "The osu! user interface size can be adjusted to your liking.",
+                                        Text = FirstRunSetupOverlayStrings.UIScaleDescription,
                                         RelativeSizeAxes = Axes.X,
                                         AutoSizeAxes = Axes.Y
                                     },

osu.Game/Overlays/FirstRunSetup/ScreenWelcome.cs

@@ -5,6 +5,7 @@ using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Game.Graphics;
 using osu.Game.Graphics.Containers;
+using osu.Game.Localisation;
 
 namespace osu.Game.Overlays.FirstRunSetup
 {
@@ -22,8 +23,7 @@ namespace osu.Game.Overlays.FirstRunSetup
                     {
                         new OsuTextFlowContainer(cp => cp.Font = OsuFont.Default.With(size: 20))
                         {
-                            Text =
+                            Text = FirstRunSetupOverlayStrings.WelcomeDescription,
-                                "Welcome to the first-run setup guide!\n\nosu! is a very configurable game, and diving straight into the settings can sometimes be overwhelming. This guide will help you get the important choices out of the way to ensure a great first experience!",
                             RelativeSizeAxes = Axes.X,
                             AutoSizeAxes = Axes.Y
                         },

osu.Game/Overlays/FirstRunSetupOverlay.cs

@@ -18,6 +18,7 @@ using osu.Game.Graphics;
 using osu.Game.Graphics.Containers;
 using osu.Game.Graphics.Sprites;
 using osu.Game.Graphics.UserInterface;
+using osu.Game.Localisation;
 using osu.Game.Overlays.FirstRunSetup;
 using osu.Game.Overlays.Notifications;
 using osu.Game.Screens;
@@ -58,8 +59,8 @@ namespace osu.Game.Overlays
 
         private readonly FirstRunStep[] steps =
         {
-            new FirstRunStep(typeof(ScreenWelcome), "Welcome"),
+            new FirstRunStep(typeof(ScreenWelcome), FirstRunSetupOverlayStrings.Welcome),
-            new FirstRunStep(typeof(ScreenUIScale), "UI Scale"),
+            new FirstRunStep(typeof(ScreenUIScale), GraphicsSettingsStrings.UIScaling),
         };
 
         private Container stackContainer = null!;
@@ -129,7 +130,7 @@ namespace osu.Game.Overlays
                                         {
                                             new OsuSpriteText
                                             {
-                                                Text = "First run setup",
+                                                Text = FirstRunSetupOverlayStrings.FirstRunSetup,
                                                 Font = OsuFont.Default.With(size: 32),
                                                 Colour = colourProvider.Content2,
                                                 Anchor = Anchor.TopCentre,
@@ -137,7 +138,7 @@ namespace osu.Game.Overlays
                                             },
                                             new OsuTextFlowContainer
                                             {
-                                                Text = "Setup osu! to suit you",
+                                                Text = FirstRunSetupOverlayStrings.SetupOsuToSuitYou,
                                                 Colour = colourProvider.Content1,
                                                 Anchor = Anchor.TopCentre,
                                                 Origin = Anchor.TopCentre,
@@ -184,7 +185,7 @@ namespace osu.Game.Overlays
                                             BackButton = new DangerousTriangleButton
                                             {
                                                 Width = 200,
-                                                Text = "Back",
+                                                Text = CommonStrings.Back,
                                                 Action = showLastStep,
                                                 Enabled = { Value = false },
                                             },
@@ -193,7 +194,7 @@ namespace osu.Game.Overlays
                                             {
                                                 RelativeSizeAxes = Axes.X,
                                                 Width = 1,
-                                                Text = "Get started",
+                                                Text = FirstRunSetupOverlayStrings.GetStarted,
                                                 Action = showNextStep
                                             }
                                         },
@@ -263,8 +264,8 @@ namespace osu.Game.Overlays
             Debug.Assert(currentStepIndex != null);
 
             NextButton.Text = currentStepIndex + 1 < steps.Length
-                ? $"Next ({steps[currentStepIndex.Value + 1].Description})"
+                ? FirstRunSetupOverlayStrings.Next(steps[currentStepIndex.Value + 1].Description)
-                : "Finish";
+                : CommonStrings.Finish;
         }
 
         protected override void PopIn()
@@ -286,7 +287,7 @@ namespace osu.Game.Overlays
             {
                 notificationOverlay.Post(new SimpleNotification
                 {
-                    Text = "Click here to resume initial setup at any point",
+                    Text = FirstRunSetupOverlayStrings.ClickToResumeFirstRunSetupAtAnyPoint,
                     Icon = FontAwesome.Solid.Horse,
                     Activated = () =>
                     {

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

@@ -28,7 +28,7 @@ namespace osu.Game.Overlays.Settings.Sections
             {
                 new SettingsButton
                 {
-                    Text = "Run setup wizard",
+                    Text = GeneralSettingsStrings.RunSetupWizard,
                     Action = () => firstRunSetupOverlay?.Show(),
                 },
                 new LanguageSettings(),