feat: change default theme

app.py

@@ -51,9 +51,6 @@ def chatbot_respond(user_message, history):
             response.json().get("data", {}).get("raw", "Sorry, I didn't understand.")
         )
     except Exception as e:
-        import traceback
-
-        traceback.print_exc()
         bot_reply = "Server unavailable. This is a mocked reply."
 
     history.append({"role": "assistant", "content": bot_reply})
@@ -77,6 +74,7 @@ def restore_chat():
 # Frontend
 
 with gr.Blocks(
+    theme="default",
     css="""
     #profile-pic-wrapper {
         width: 100px;
@@ -125,7 +123,7 @@ with gr.Blocks(
         right: 20px;
         z-index: 1000;
     }
-    """
+    """,
 ) as demo:
 
     with gr.Row():