anchor.diff:      sassc
     ];
   
  +  passthru = {
  +    updateScript = nix-update-script {
  +      attrPath = "pantheon.${pname}";
  +    };
  +  };
  +
     meta = with lib; {
       description = "GTK theme designed to be smooth, attractive, fast, and usable";
       homepage = "https://github.com/elementary/stylesheet";
  
positive.code: { lib, stdenv
  , fetchFromGitHub
  , nix-update-script
  , pantheon
  
negative.code: 
  stdenv.mkDerivation rec {
    pname = "elementary-gtk-theme";
    version = "6.1.1";
  
    repoName = "stylesheet";
  
  