Wpgtk

From NixOS Wiki
Note: This package does NOT work if something like Home Manager is used to manage dotfiles!

Wpgtk is a colorscheme, wallpaper and template manager for general *nix systems.

It can easily be installed like any other package on NixOS by adding it to the environment.systemPackages in the /etc/nixos/configuration.nix, but it will also need the following option in the NixOS configuration to work:

programs.dconf.enable = true;