Update app.py

app.py

@@ -542,11 +542,11 @@ with gr.Blocks() as demo:
                     clear_color=[1,1,1,1],
                 )
 
-            with gr.Row():
-                with gr.Group():
-                    do_marching_cubes = gr.Checkbox(label="Preprocess with Marching Cubes", value=False)
-                    do_sampling = gr.Checkbox(label="Random Sampling", value=False)
-                    sample_seed = gr.Number(value=0, label="Seed Value", precision=0)
+        with gr.Row():
+            with gr.Group():
+                do_marching_cubes = gr.Checkbox(label="Preprocess with Marching Cubes", value=False)
+                do_sampling = gr.Checkbox(label="Random Sampling", value=False)
+                sample_seed = gr.Number(value=0, label="Seed Value", precision=0)
 
             with gr.Row():
                 submit = gr.Button("Generate", elem_id="generate", variant="primary")
@@ -583,8 +583,8 @@ with gr.Blocks() as demo:
         outputs=[preprocess_model_obj, input_image_render, output_model_obj, output_image_render],
     )
 
-	gr.Markdown(STEP3_HEADER)
+    gr.Markdown(STEP3_HEADER)
 	gr.Markdown(STEP4_HEADER)
 
 demo.queue(max_size=10)
-demo.launch()
+demo.launch()