Update app.py

app.py

@@ -8,11 +8,11 @@ with gr.Blocks() as demo:
     gr.Markdown("## Sketchpad Visualization")
     with gr.Row():
         with gr.Column():
-            sketchpad = gr.Image(source="canvas", tool="sketch", type="numpy", label="Draw Something")
+            sketchpad = gr.Sketchpad(shape=(256, 256), label="Draw Something")
         with gr.Column():
             output_image = gr.Image(type="numpy", label="Your Sketch")
 
-    sketchpad.change(fn=display_sketch, inputs=sketchpad, outputs=output_image)
+    sketchpad.submit(fn=display_sketch, inputs=sketchpad, outputs=output_image)
 
 if __name__ == "__main__":
     demo.launch()