flutter flame fadein colorfilter example

``` final paint = Paint(); // paint.color = Colors.white.withOpacity(0.02); // paint.color = Colors.transparent; // paint.color = const Color(0x0F000000); paint.color = const Color.fromRGBO(0, 0, 0, 0.2); paint.colorFilter = ColorFilter.mode(ParticleHelper.randomMaterialColor(), BlendMode.srcATop); final sprite1 = SpriteComponent( sprite: sprite, size: 128, anchor: Anchor.center, paint: paint, ); // sprite1.add(OpacityEffect.to(0.02, EffectController(duration: 0))); sprite1.add(OpacityEffect.fadeIn(EffectController(duration: 1))); add(sprite1); ```