Update app.py

app.py

@@ -88,7 +88,10 @@ def generate_readme(repo_input):
     except Exception as e:
         return f"Error generating README: {str(e)}"
 
-with gr.Blocks(theme="NeoPy/Syne", title="HF Repo README Generator") as demo:
+with gr.Blocks(
+    theme=os.environ.get("gradio_theme"), 
+    title="HF Repo README Generator",
+) as demo:
     gr.Markdown("# 🚀 Hugging Face Repository README Generator")
     
     with gr.Row():