Install gsetroot by entering the following commands in the terminal:
sudo apt update sudo apt install gsetroot
Description:
grahical GTK-based front-end for Esetroot
It can be used to choose a wallpaper and configure root window. It works under Window Managers like FluxBox, Enlightenment, WindowMaker NextStep, BlackBox, IceWM and others... This software is under the GPL license.
Homepage: http://freecode.com/projects/gsetroot
Version: 1.1-3
Section: universe/utils