final update

app.py

@@ -89,12 +89,7 @@ def get_text_response(user_message,history):
     response = llm_chain.predict(user_message = user_message)
     return response
 
-theme = gr.themes.Default(primary_hue="blue").set(
- 
-     button_primary_background_fill="*primary_400",
-    button_primary_background_fill_hover="*primary_300",
-   
-)
+theme =gr.themes.Default(primary_hue='purple')
 
 demo = gr.ChatInterface(get_text_response,clear_btn=None,retry_btn=None,stop_btn=None,undo_btn=None,theme=theme,
                         chatbot= gr.Chatbot(bubble_full_width=False,label='Kum bot',show_label=True,height=350,show_share_button=False,