Update app.py

app.py

@@ -209,7 +209,7 @@ class LangChain_Document_QA:
       history_state.clear()
 
     def gradio_interface(self):
-      with gr.Blocks(css="style.css",theme=gr.themes.dark-glass()) as demo:
+      with gr.Blocks(css="style.css",theme=gr.themes.Glass()) as demo:
           with gr.Row():
             gr.HTML("""<center><img class="image" src="https://www.syrahealth.com/images/SyraHealth_Logo_Dark.svg" alt="Image" width="210" height="210"></center>
             """)