Update app_gradio.py

app_gradio.py

@@ -347,7 +347,7 @@ with gr.Blocks(css=css) as demo:
             ],
             outputs=output_gallery
     )
-     def reload_pad():
+    def reload_pad():
          blank_pad ={
            "background": "./static/examples/background.jpeg",
             "layers": None,