anchor.diff:  { lib
   , stdenvNoCC
   , fetchFromGitHub
  +, gitUpdater
   , gnome-themes-extra
   , gtk-engine-murrine
   , jdupes
  
positive.code: lib.checkListOfEnum "${pname}: tweaks" [ "nord" "black" "midblack" "rimless" "normal" ] tweaks
  lib.checkListOfEnum "${pname}: grub screens" [ "1080p" "2k" "4k" ] grubScreens
  
  stdenvNoCC.mkDerivation {
    inherit pname;
    version = "unstable-2022-02-04";
  
  
negative.code:     runHook postInstall
    '';
  
    passthru.updateScript = gitUpdater { inherit pname version; };
  
    meta = with lib; {
      description = "Flat Gtk+ theme based on Elegant Design";
      homepage = "https://github.com/vinceliuice/Graphite-gtk-theme";
  