update app.py

app.py

@@ -112,7 +112,7 @@ system_msg_info = """The system message is used to set the context and behavior
 
 
 #Modifying existing Gradio Theme
-theme = gr.themes.Soft(primary_hue="indigo", secondary_hue="blue", neutral_hue="blue",
+theme = gr.themes.Glass(primary_hue="violet", secondary_hue="blue", neutral_hue="blue",
                       text_size=gr.themes.sizes.text_lg)                
 
 with gr.Blocks(css = """#col_container { margin-left: auto; margin-right: auto;} #chatbot {height: 520px; overflow: auto;}""",