Update app.py

app.py

@@ -553,7 +553,7 @@ with gr.Blocks(css="custom.css") as demo:
                 image_strength = gr.Slider(0, 1, value=0.15, step=0.01, label="Image strength", info="Higher values increase the similarity with the structure/colors of the original photo")
                 guidance_scale = gr.Slider(0, 50, value=7, step=0.1, label="Guidance Scale")
                 depth_control_scale = gr.Slider(0, 1, value=0.8, step=0.01, label="Zoe Depth ControlNet strenght")
-                aspect_ratio = gr.CheckboxGroup(choices=["square", "portrait", "landscape"], value="square", label="Aspect Ratio")
+                aspect_ratio = gr.Radio(choices=["square", "portrait", "landscape"], value="square", label="Aspect Ratio")
             prompt_title = gr.Markdown(
                 value="### Click on a LoRA in the gallery to select it",
                 visible=True,