feat: Add Scene specific background color

CHANGELOG.md

@@ -15,6 +15,7 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Added
 
+- Added Scene specific background color
 - Added ability to apply draw offset to `ex.IsometricMap` and `ex.Tilemap`
 - Added `visibility` and `opacity` to `ex.IsometricMap`
 - Added base elevation for `ex.IsometricMap` so multiple maps can sort correctly

src/engine/Engine.ts

@@ -1274,7 +1274,8 @@ O|===|* >________________>\n\
       return;
     }
 
-    this.graphicsContext.backgroundColor = this.backgroundColor;
+    // Use scene background color if present, fallback to engine
+    this.graphicsContext.backgroundColor = this.currentScene.backgroundColor ?? this.backgroundColor;
 
     this.currentScene.draw(this.graphicsContext, delta);
 

src/engine/Scene.ts

@@ -33,6 +33,7 @@ import { OffscreenSystem } from './Graphics/OffscreenSystem';
 import { ExcaliburGraphicsContext } from './Graphics';
 import { PhysicsWorld } from './Collision/PhysicsWorld';
 import { EventEmitter, EventKey, Handler, Subscription } from './EventEmitter';
+import { Color } from './Color';
 
 export type SceneEvents = {
   initialize: InitializeEvent<Scene>,
@@ -75,6 +76,11 @@ implements CanInitialize, CanActivate<TActivationData>, CanDeactivate, CanUpdate
    */
   public camera: Camera = new Camera();
 
+  /**
+   * Scene specific background color
+   */
+  public backgroundColor?: Color;
+
   /**
    * The ECS world for the scene
    */