Update app.py

app.py

@@ -21,9 +21,10 @@ with gr.Blocks(
         neutral_hue="gray",
         text_size="lg"
     ).set(
-        background_fill_primary='*secondary_500',
+        background_fill_primary='*neutral_500',
+        background_fill_primary='*secondary_200',
         background_fill_secondary='neutral_100',
-        background_fill_secondary_dark='secondary_200',
+        background_fill_secondary_dark='neutral_200',
         border_color_accent='*secondary_400',
         border_color_accent_dark='*secondary_200',
         color_accent='*secondary_600',