Update app.py

app.py

@@ -116,7 +116,7 @@ theme_addon_msg = """<center>🌟 Discover Gradio Themes with this Demo, featuri
 system_msg_info = ""
 
 #Modifying existing Gradio Theme
-theme = gr.themes.Soft(primary_hue="zinc", secondary_hue="green", neutral_hue="green",
+theme = gr.themes.Soft(primary_hue="zinc", secondary_hue="green", 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;}""",