Fixed

app.py

@@ -24,8 +24,6 @@ theme = gr.themes.Monochrome(
     color_accent='*primary_50',
     color_accent_soft_dark='*neutral_100',
     block_background_fill_dark='*neutral_50',
-    block_background_fill = 'neutral_400',
-    block_label_border_color ='*neutral_400',
     checkbox_background_color='*primary_400',
     checkbox_background_color_selected='*primary_700',
     checkbox_background_color_selected_dark='*neutral_50',
@@ -274,7 +272,7 @@ with gr.Blocks(theme=theme) as demo:
                 )
             
             with gr.Group(visible=True) as food_group:
-                    gr.HTML("<h3>Luggage</h3>")
+                    gr.Markdown("### Food")
                     food_prefs = gr.Dropdown(
                         choices=["Italian", "Thai", "Mexican", "Japanese", "Vegan", "Seafood"],
                         multiselect=True,