Variety is a wallpaper changer that automatically downloads wallpapers
from sources such as Wallbase, Flickr, Wallpapers.net, Desktoppr, NASA Astronomy Picture of the Day
as well as World Sunlight Map: a live Earth wallpaper
which changes throughout the day. Using it, you can get a new, beautiful wallpaper automatically at the interval you set in the application preferences.
The application supports most desktop environments: Unity, GNOME Shell, KDE, LXDE, Xfce, Cinnamon, MATE and Pantheon.