fix: Notify the component when ColorEffect resets its color filter

Author: spydon

packages/flame/lib/src/effects/color_effect.dart

@@ -53,5 +53,6 @@ class ColorEffect extends ComponentEffect<HasPaint> {
   void reset() {
     super.reset();
     target.getPaint(paintId).colorFilter = _original;
+    target.onChanged();
   }
 }

packages/flame/test/effects/color_effect_test.dart

@@ -96,6 +96,32 @@ void main() {
       },
     );
 
+    testWithFlameGame(
+      'reset notifies the component of the restored color filter',
+      (game) async {
+        final component = TextComponent<TextPaint>(text: 'foo');
+        await game.ensureAdd(component);
+
+        final effect = ColorEffect(
+          Colors.red,
+          EffectController(duration: 1),
+        );
+        await component.ensureAdd(effect);
+        game.update(0.5);
+        expect(
+          component.textRenderer.style.foreground!.colorFilter,
+          isNotNull,
+        );
+
+        effect.reset();
+
+        expect(
+          component.textRenderer.style.foreground!.colorFilter,
+          isNull,
+        );
+      },
+    );
+
     testWithFlameGame(
       'can be re-added in the component tree',
       (game) async {