Update app.py

app.py

@@ -20,7 +20,7 @@ with gr.Blocks(theme='ParityError/Anime') as demo:
         with gr.Column(scale=3):
             with gr.Box():
                 dropdown.render()
-                toggle_dark = gr.Button(value="Toggle Dark").style(full_width=True)
+                toggle_dark = gr.Button(value="Toggle Dark")
 
     dropdown.change(None, dropdown, None, _js=js)
     toggle_dark.click(
@@ -28,7 +28,7 @@ with gr.Blocks(theme='ParityError/Anime') as demo:
         _js="""
         () => {
             document.body.classList.toggle('dark');
-            document.querySelector('gradio-app').style.backgroundColor = 'var(--neutral-500)'
+            document.querySelector('gradio-app').style.backgroundColor = 'var(--neutral-700)'
         }
         """,
     )