anchor.diff:  
   stdenv.mkDerivation rec {
     pname = "elementary-icon-theme";
  -  version = "6.0.0";
  +  version = "6.1.0";
   
     repoName = "icons";
   
  
positive.code: 
    postFixup = "gtk-update-icon-cache $out/share/icons/elementary";
  
    meta = with lib; {
      description = "Named, vector icons for elementary OS";
      longDescription = ''
  
negative.code: { lib
  , stdenv
  , fetchFromGitHub
  , nix-update-script
  , pantheon
  