correct HMI

app.py

@@ -823,7 +823,7 @@ with gr.Blocks() as demo:
                 placeholder = "Input Your Question",
                 show_label = False,
                 )
-            submit_button = gr.Button("STOP", variant="primary", visible=True)
+            submit_button = gr.Button("SUBMIT", variant="primary", visible=True)
             stop_button = gr.Button("STOP", variant='stop', visible=False)
 
         with gr.Row():
@@ -849,8 +849,8 @@ with gr.Blocks() as demo:
                 autoplay= True,
                 label= "OUTPUT",
                 )
-            upload_button = gr.UploadButton("✡️ INGEST DB", file_count="multiple", scale= 0)
-            upload_file_button = gr.UploadButton("📁 UPLOAD", file_count="single", scale= 0)
+            upload_button = gr.UploadButton("✡️ INGEST DB", file_count="multiple", scale= 0, variant="secondary")
+            upload_file_button = gr.UploadButton("📁 UPLOAD", file_count="single", scale= 0, variant="secondary")
             retry_button = gr.Button("RETRY")
             clear_button = gr.Button("CLEAR")
         with gr.Accordion(