Fix restart loop: variant=secondary, theme back in Blocks()

app.py

@@ -465,7 +465,7 @@ MODELS = [
     'meta-llama/Meta-Llama-3-8B-Instruct',
 ]
 
-with gr.Blocks(title='AP Commander Training') as demo:
+with gr.Blocks(title='AP Commander Training', theme=gr.themes.Base()) as demo:
 
     gr.HTML("""
     <div style="background:#0d1117;padding:18px 24px;border-radius:8px;
@@ -494,7 +494,7 @@ with gr.Blocks(title='AP Commander Training') as demo:
 
     with gr.Row():
         start_btn = gr.Button('🚀  Start Training', variant='primary', size='lg', scale=4)
-        stop_btn  = gr.Button('🛑  Stop & Save Plots', variant='stop', size='lg', scale=1)
+        stop_btn  = gr.Button('🛑  Stop & Save Plots', variant='secondary', size='lg', scale=1)
     stop_status = gr.Textbox(label='', visible=True, interactive=False, max_lines=2,
                              placeholder='Stop status will appear here…')
 
@@ -607,4 +607,4 @@ with gr.Blocks(title='AP Commander Training') as demo:
     timer = gr.Timer(15)
     timer.tick(fn=_refresh, outputs=_plot_outputs)
 
-demo.launch(server_name='0.0.0.0', server_port=7860, theme=gr.themes.Base())
+demo.launch(server_name='0.0.0.0', server_port=7860)