Update models/model_manager.py

models/model_manager.py

@@ -194,7 +194,7 @@ class ModelManager:
 
     def create_placeholder_image(self, width, height):
         """创建占位图像"""
-        color = (random.randint(120, 200), random.randint(120, 200), random.randint(120, 200)
+        color = (random.randint(120, 200), random.randint(120, 200), random.randint(120, 200))
         return Image.new('RGB', (width, height), color=color)
 
     def cleanup(self):