In our Darklup plugin, we have 15 different dark mode switch styles for our users. You can choose any of the switch styles for your website. Also, you can independently customize the switch’s appearance.
You can separately choose switch styles for desktop and smartphone.
Go to Darklup Dashboard > Switch Styles > Floating Switch(Desktop).

Now choose your favorite switch style for dark mode. You can also see the switch preview on the right side of the dashboard.