Update app.py

app.py

@@ -125,6 +125,16 @@ CSS="""
 # with gr.Blocks(theme='NoCrypt/miku@>=1.2.2', fill_width=True, css=CSS) as demo:
 with gr.Blocks(theme='JohnSmith9982/small_and_pretty', fill_width=True, css=CSS) as demo:
     gr.HTML(
+
+<script>
+	const url = new URL(window.location);
+
+	if (url.searchParams.get('__theme') !== 'dark') {
+		url.searchParams.set('__theme', 'dark');
+		window.location.href = url.href;
+	}
+</script>
+        
 )  
     with gr.Tab('6 Models'):
         with gr.Column(scale=2):