Update app.py

app.py

@@ -194,6 +194,7 @@ def ui():
 
         with gr.Row():
             reference_image = gr.Image(label="Reference Image")
+             height_slider = gr.Slider(
                     label="Height", minimum=512, maximum=960, value=512, step=64
                 )
                 length_slider = gr.Slider(