Sparky Feh is a small tool that allows you to select an image file as wallpaper in small window managers.
Installation
apt install sparky-feh
Launch
1. Menu→ Accessories→ Wallpaper Manager
or
2. The command:
sparky-feh
The application will also load the selected wallpaper upon login or system restart. The following command must be added to the window manager's startup script: