Update app.py

app.py

@@ -162,7 +162,7 @@ with gr.Blocks(css=css, title="ZenCtrl Inpainting") as demo:
             ["examples/car.png", "examples/car_bg.png", "car on the road", "examples/car_out.png"],
         ],
         inputs=[subj_img, ref_img, promptbox],
-        outputs=[[output_img],
+        outputs=[output_img],
         label="Visual Presets: Subject · Background · Prompt · Output",
         examples_per_page="all"
     )