Install libghc-xmonad-wallpaper-doc by entering the following commands in the terminal:
sudo apt update sudo apt install libghc-xmonad-wallpaper-doc
Description:
xmonad wallpaper extension; documentation
Designed for xmonad users who rely on feh to setup wallpaper. It allows user to setup a random image as the wallpaper chosen from user specified image directories. . This package provides the documentation for a library for the Haskell programming language. See http://www.haskell.org/ for more information on Haskell.
Homepage: http://hackage.haskell.org/package/xmonad-wallpaper
Version: 0.0.1.4-1
Section: universe/doc