Update app.py

app.py

@@ -100,7 +100,17 @@ with gr.Blocks(
         primary_hue="blue", 
         secondary_hue="cyan", 
         font=["Arial", "sans-serif"]
-    )
+    ), 
+    js="""
+function refresh() {
+    const url = new URL(window.location);
+
+    if (url.searchParams.get('__theme') !== 'dark') {
+        url.searchParams.set('__theme', 'dark');
+        window.location.href = url.href;
+    }
+}
+"""
 ) as app:
     gr.Markdown(f"""
     <div style='text-align: center; padding: 20px; color: white;'>