update logo colour only when changing setting value

some of it may be trauma-inducing, but I don't know how to make it
better

osu.Game/Configuration/OsuConfigManager.cs

@@ -198,6 +198,7 @@ namespace osu.Game.Configuration
 
             SetDefault(OsuSetting.MenuBackgroundSource, BackgroundSource.Skin);
             SetDefault(OsuSetting.SeasonalBackgroundMode, SeasonalBackgroundMode.Never);
+            SetDefault(OsuSetting.UseSeasonalBackgroundsV2, true);
 
             SetDefault(OsuSetting.DiscordRichPresence, DiscordRichPresenceMode.Full);
 
@@ -442,6 +443,7 @@ namespace osu.Game.Configuration
         MenuBackgroundSource,
         GameplayDisableWinKey,
         SeasonalBackgroundMode,
+        UseSeasonalBackgroundsV2, // TODO: add migrations
         BackgroundCategory,
         EditorWaveformOpacity,
         EditorShowHitMarkers,

osu.Game/Graphics/Backgrounds/SeasonalBackgroundLoader.cs

@@ -33,19 +33,19 @@ namespace osu.Game.Graphics.Backgrounds
         [Resolved]
         private IAPIProvider api { get; set; }
 
-        private Bindable<SeasonalBackgroundMode> backgroundMode;
+        private Bindable<bool> useSeasonalBackgrounds;
         private Bindable<string> selectedCategory;
         private Bindable<APISeasonalBackgrounds> currentBackgrounds;
 
         private int currentBackgroundIndex;
 
-        private bool shouldShowCustomBackgrounds => backgroundMode.Value != SeasonalBackgroundMode.Never;
+        private bool shouldShowCustomBackgrounds => useSeasonalBackgrounds.Value;
 
         [BackgroundDependencyLoader]
         private void load(OsuConfigManager config, SessionStatics sessionStatics)
         {
-            backgroundMode = config.GetBindable<SeasonalBackgroundMode>(OsuSetting.SeasonalBackgroundMode);
-            backgroundMode.BindValueChanged(_ => BackgroundChanged?.Invoke());
+            useSeasonalBackgrounds = config.GetBindable<bool>(OsuSetting.UseSeasonalBackgroundsV2);
+            useSeasonalBackgrounds.BindValueChanged(_ => BackgroundChanged?.Invoke());
 
             selectedCategory = config.GetBindable<string>(OsuSetting.BackgroundCategory);
             selectedCategory.BindValueChanged(_ => fetchBackgroundsForSelectedCategory());
@@ -53,7 +53,7 @@ namespace osu.Game.Graphics.Backgrounds
             currentBackgrounds = sessionStatics.GetBindable<APISeasonalBackgrounds>(Static.SeasonalBackgrounds);
 
             if (shouldShowCustomBackgrounds)
-                fetchCategories();
+                fetchCategories(true);
         }
 
         /// <summary>
@@ -64,7 +64,7 @@ namespace osu.Game.Graphics.Backgrounds
             fetchCategories();
         }
 
-        private void fetchCategories()
+        private void fetchCategories(bool ignoreSuccess = false)
         {
             if (!shouldShowCustomBackgrounds) return;
 
@@ -74,20 +74,27 @@ namespace osu.Game.Graphics.Backgrounds
             {
                 var serverCategories = response.Categories ?? Enumerable.Empty<string>();
 
-                AvailableCategories.Value = new[] { "Default" }.Concat(serverCategories)
-                                                               .Distinct(StringComparer.OrdinalIgnoreCase).ToList();
+                AvailableCategories.Value = serverCategories.Distinct(StringComparer.OrdinalIgnoreCase).ToList();
+
+                if (!AvailableCategories.Value.Any()) {
+                    selectedCategory.Value = "";
+                    return; // we don't have any categories!!!
+                }
 
                 if (!AvailableCategories.Value.Contains(selectedCategory.Value))
-                    selectedCategory.Value = "Default";
-                else
-                    fetchBackgroundsForSelectedCategory();
+                    selectedCategory.Value = AvailableCategories.Value.Contains("Default")
+                    ? "Default"
+                    : AvailableCategories.Value.ElementAt(0);
 
-                OnCategoriesRefreshed?.Invoke();
+                fetchBackgroundsForSelectedCategory();
+
+                if (!ignoreSuccess)
+                    OnCategoriesRefreshed?.Invoke();
             };
 
             request.Failure += exception =>
             {
-                AvailableCategories.Value = new[] { "Íå óäàëîñü çàãðóçèòü..." };
+                AvailableCategories.Value = Array.Empty<string>();
                 OnLoadFailure?.Invoke(exception);
             };
 
@@ -98,13 +105,6 @@ namespace osu.Game.Graphics.Backgrounds
         {
             if (!shouldShowCustomBackgrounds) return;
 
-            if (AvailableCategories.Value.Count() == 1 && AvailableCategories.Value.First().Contains("Íå óäàëîñü"))
-            {
-                currentBackgrounds.Value = new APISeasonalBackgrounds { Backgrounds = new List<APISeasonalBackground>() };
-                BackgroundChanged?.Invoke();
-                return;
-            }
-
             string categoryToFetch = selectedCategory.Value == "Default" ? null : selectedCategory.Value;
             var request = new GetSeasonalBackgroundsRequest(categoryToFetch);
 

osu.Game/OsuGame.cs

@@ -171,7 +171,7 @@ namespace osu.Game
         private readonly ScreenshotManager screenshotManager = new ScreenshotManager();
 
         [Cached]
-        private readonly SeasonalBackgroundLoader backgroundLoader;
+        private SeasonalBackgroundLoader seasonalBackgroundLoader;
 
         protected SentryLogger SentryLogger;
 
@@ -253,10 +253,6 @@ namespace osu.Game
 
         public OsuGame(string[] args = null)
         {
-            backgroundLoader = new SeasonalBackgroundLoader();
-            backgroundLoader.OnLoadFailure += handleBackgroundLoadFailure;
-            backgroundLoader.OnCategoriesRefreshed += handleCategoriesRefreshed;
-
             this.args = args;
 
             Logger.NewEntry += forwardGeneralLogToNotifications;
@@ -271,6 +267,8 @@ namespace osu.Game
                     tabletLogNotifyOnError = true;
                 }, true);
             });
+
+            initializeSeasonalBackgrounds();
         }
 
         #region IOverlayManager
@@ -409,18 +407,6 @@ namespace osu.Game
                 }
             }
         }
-        private void handleCategoriesRefreshed()
-        {
-            Schedule(() =>
-            {
-                Notifications?.Post(new SimpleNotification
-                {
-                    Text = ButtonSystemStrings.SeasonalBackgroundsRefreshed,
-                    Icon = FontAwesome.Solid.CheckCircle,
-                    Transient = true
-                });
-            });
-        }
 
         [BackgroundDependencyLoader]
         private void load()
@@ -1252,7 +1238,7 @@ namespace osu.Game
 
             loadComponentSingleFile(screenshotManager, Add);
 
-            loadComponentSingleFile(backgroundLoader, Add);
+            loadComponentSingleFile(seasonalBackgroundLoader, Add);
 
             // dependency on notification overlay, dependent by settings overlay
             loadComponentSingleFile(CreateUpdateManager(), Add, true);
@@ -1355,18 +1341,6 @@ namespace osu.Game
             handleStartupImport();
         }
 
-        private void handleBackgroundLoadFailure(Exception exception)
-        {
-            Schedule(() =>
-            {
-                Notifications?.Post(new SimpleErrorNotification
-                {
-                    Text = ButtonSystemStrings.SeasonalBackgroundsFail,
-                    Icon = FontAwesome.Solid.ExclamationTriangle,
-                    Transient = true
-                });
-            });
-        }
         private void handleBackButton()
         {
             // TODO: this is SUPER SUPER bad.
@@ -1503,6 +1477,40 @@ namespace osu.Game
             }
         }
 
+        private void initializeSeasonalBackgrounds()
+        {
+            seasonalBackgroundLoader = new SeasonalBackgroundLoader();
+            seasonalBackgroundLoader.OnCategoriesRefreshed += handleCategoriesRefreshed;
+            seasonalBackgroundLoader.OnLoadFailure += handleBackgroundLoadFailure;
+        }
+
+        private void handleCategoriesRefreshed()
+        {
+            Schedule(() =>
+            {
+                Notifications?.Post(new SimpleNotification
+                {
+                    Text = ButtonSystemStrings.SeasonalBackgroundsRefreshed,
+                    Icon = FontAwesome.Solid.CheckCircle,
+                    Transient = true
+                });
+            });
+        }
+
+        private void handleBackgroundLoadFailure(Exception exception)
+        {
+            Schedule(() =>
+            {
+                Notifications?.Post(new SimpleErrorNotification
+                {
+                    Text = ButtonSystemStrings.SeasonalBackgroundsFail,
+                    Icon = FontAwesome.Solid.ExclamationTriangle,
+                    Transient = true
+                });
+            });
+        }
+
+
         private Task asyncLoadStream;
 
         /// <summary>

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

@@ -37,13 +37,11 @@ namespace osu.Game.Overlays.Settings.Sections.UserInterface
             var backgroundModeBindable = config.GetBindable<SeasonalBackgroundMode>(OsuSetting.SeasonalBackgroundMode);
             var enabledProxyBindable = new Bindable<bool>();
 
-            backgroundModeBindable.BindValueChanged(mode => enabledProxyBindable.Value = mode.NewValue == SeasonalBackgroundMode.Always, true);
-            enabledProxyBindable.BindValueChanged(enabled => backgroundModeBindable.Value = enabled.NewValue ? SeasonalBackgroundMode.Always : SeasonalBackgroundMode.Never);
-
             var backgroundToggle = new SettingsCheckbox
             {
                 LabelText = UserInterfaceStrings.UseSeasonalBackgrounds,
-                Current = enabledProxyBindable
+                Current = config.GetBindable<bool>(OsuSetting.UseSeasonalBackgroundsV2),
+                ClassicDefault = true
             };
 
             var categoryDropdown = new SettingsDropdown<string>

osu.Game/Screens/Menu/OsuLogo.cs

@@ -196,7 +196,7 @@ namespace osu.Game.Screens.Menu
                                                                             RelativeSizeAxes = Axes.Both,
                                                                             Colour = ColourInfo.GradientVertical(
                                                                                 Color4Extensions.FromHex(@"ff66ba"), // original osu! cookie pink
-                                                                                Color4Extensions.Darken(Color4Extensions.FromHex(@"ff66ba"), 1.0f)
+                                                                                Color4Extensions.Darken(Color4Extensions.FromHex(@"ff66ba"), 0.5f)
                                                                             ),
                                                                         },
                                                                         triangles = new TrianglesV2
@@ -208,7 +208,7 @@ namespace osu.Game.Screens.Menu
                                                                             SpawnRatio = 1.4f,
                                                                             Colour = ColourInfo.GradientVertical(
                                                                                 Color4Extensions.FromHex(@"ff66ba"),
-                                                                                Color4Extensions.Darken(Color4Extensions.FromHex(@"ff66ba"), 2.5f)
+                                                                                Color4Extensions.Darken(Color4Extensions.FromHex(@"ff66ba"), 1.0f)
                                                                             ),
                                                                             RelativeSizeAxes = Axes.Both,
                                                                         },
@@ -264,15 +264,15 @@ namespace osu.Game.Screens.Menu
             if (triangles == null || colourBox == null)
                 return; // we're still loading
 
+            colourBox.Colour = ColourInfo.GradientVertical(
+                logoColour.Value,
+                Color4Extensions.Darken(logoColour.Value, 0.5f)
+            );
+
             triangles.Colour = ColourInfo.GradientVertical(
                 logoColour.Value,
                 Color4Extensions.Darken(logoColour.Value, 1.0f)
             );
-
-            colourBox.Colour = ColourInfo.GradientVertical(
-                logoColour.Value,
-                Color4Extensions.Darken(logoColour.Value, 2.5f)
-            );
         }
 
         public Container LogoElements { get; private set; }
@@ -313,6 +313,7 @@ namespace osu.Game.Screens.Menu
             ripple.Texture = textures.Get(@"Menu/logo");
 
             logoColour = config.GetBindable<Colour4>(OsuSetting.MenuCookieColor);
+            logoColour.BindValueChanged(_ => UpdateColour());
         }
 
         private int lastBeatIndex;
@@ -393,7 +394,6 @@ namespace osu.Game.Screens.Menu
         protected override void Update()
         {
             base.Update();
-            UpdateColour();
 
             const float scale_adjust_cutoff = 0.4f;