Here you can switch between light and dark modes.
You can also switch between them on desktop by pressing Ctrl/Command + Alt + D
Please note that Dark mode is still in beta mode.
Additionally, there is an URL/domain parameter you can use. Adding “?darkmode” to URL will enable dark mode while adding “?lightmode” to URL will disable it here. You can test it by clicking a following link, which returns to home page:
Enable Dark mode:
Disable Dark mode: