Update app.py

app.py

@@ -130,8 +130,12 @@ def set_visible_true():
 
 theme_addon_msg = ""
 system_msg_info = ""
-theme = gr.themes.Default()
+theme = gr.themes.Base(
+    neutral_hue="blue",
+)
+
 with gr.Blocks(theme=theme) as demo:
+    ...
     with gr.Column(elem_id="col_container"):
         with gr.Accordion("", open=False, visible=False):
             system_msg = gr.Textbox(value="")