phantomcastle: always convert_alpha

pygame-wasm/phantomcastle/game/endlevelmenu.py

@@ -46,7 +46,7 @@ class EndLevelMenu(DrawableGameObject, EventHandler):
 
     def _create_win_image(self) -> SurfaceWithRect:
         """Картинка для хорошего финала"""
-        surface = pygame.image.load(self.scene.assets["win.png"])
+        surface = pygame.image.load(self.scene.assets["win.png"]).convert_alpha()
         rect = surface.get_rect()
         rect.center = self.parent.rect.center
         return SurfaceWithRect(surface, rect)