Update app.py

app.py

@@ -65,10 +65,9 @@ def gpt4o_mistral(message: str,
 # Gradio block
 chatbot=gr.Chatbot(height=450, label='Gradio ChatInterface')
 
-with gr.Blocks(fill_height=True, css="xiaobaiyuan/theme_brief") as demo:
+with gr.Blocks(fill_height=True) as demo:
     
     gr.Markdown(DESCRIPTION)
-    gr.DuplicateButton(value="Duplicate Space for private use", elem_id="duplicate-button")
     gr.ChatInterface(
         fn=gpt4o_mistral,
         chatbot=chatbot,
@@ -96,6 +95,7 @@ with gr.Blocks(fill_height=True, css="xiaobaiyuan/theme_brief") as demo:
             ['Justify why a penguin might make a good king of the jungle.']
             ],
         cache_examples=False,
+        theme="xiaobaiyuan/theme_brief"
                      )