Update app.py

app.py

@@ -131,7 +131,7 @@ def text_fn():
     return None
     
 
-with gr.Blocks(theme=gr.themes.Soft()) as chat:
+with gr.Blocks(theme=gr.themes.Default()) as chat:
     
     gr.Markdown(f"""# I am StrathBot. A customised AI chatbot.
                 <p style='font-size:16px;'>Let's chat about {topic}.</br></p>