Update app.py

app.py

@@ -150,9 +150,10 @@ def vote(data: gr.LikeData):
         print("You downvoted this response: " + data.value["value"])
 
 chat_theme = gr.themes.Monochrome(
-    primary_hue = "pink",
-    secondary_hue = "rose",
-    neutral_hue = "rose").set(
+    primary_hue = "green",
+    secondary_hue = "blue",
+    neutral_hue = "slate").set(
+    background_fill_primary = "*primary_100",
     input_background_fill = "*neutral_100",
     input_border_color_focus = "*primary_200")