Update app.py

app.py

@@ -19,9 +19,12 @@ with gr.Blocks(
     css=".contain { display: flex !important; flex-direction: column !important; }"
     "#chatbot { flex-grow: 1 !important; overflow: auto !important; }"
     "#col { height: calc(100vh - 112px - 16px) !important; }"
-    "#submit:hover { background-color: green !important; }"
-    "#clear { background-color: darkred !important; }",
-    theme=gr.themes.Soft(font=[gr.themes.GoogleFont("Martel Sans")])                   
+    # "#submit:hover { background-color: green !important; }"
+    # "#clear { background-color: darkred !important; }",
+    theme=gr.themes.Soft(font=[gr.themes.GoogleFont("Martel Sans")]).set(
+    button_cancel_background_fill_hover_dark='darkred',
+    button_cancel_background_fill_hover='darkred'
+    )                   
 ) as demo:
     gr.Markdown("# GPT4All Chatbot")
     with gr.Row():