Update app.py

app.py

@@ -56,7 +56,8 @@ def respond(message, chat_history, temperature):
     chat_history.append((message, bot_reply))
     return "", chat_history
 
-with gr.Blocks() as demo:
+with gr.Blocks(theme=gr.themes.Soft()) as demo:
+
     gr.Markdown("## 💻 CodeMentor AI – Your Programming Tutor")
 
     chatbot = gr.Chatbot(height=400)