Update: background template

app.py

@@ -50,7 +50,7 @@ with gr.Blocks(css=".pink-bg { background-color: pink; } .orchid-green { color:
     gr.Markdown("# XAI: Visualize Object Detection of Your Models")
     gr.Markdown("Select a sample image to visualize object detection.")
     default_sample = "Sample 1"
-    with gr.Row():
+    with gr.Row(elem_classes="orchid-green-bg"):
         # Left side: Sample selection and upload image
         with gr.Column():
             sample_selection = gr.Radio(