Darkinator - The Darkmode changing Wallpaper is a simple and powerful tool that lets you quickly change the look of your phone and tablet with two different wallpapers. One for the regular "Light" mode and one for Dark Mode. It works by using a customizable live wallpaper. The app also allows you to easily share your wallpapers from other apps (like the Gallery) with Darkinator.

You can choose from a list of predefined themes and also create your own. The app works with Android and is compatible with most devices. You can even use it on older Android phones.