anchor.diff:        mkdir -vp "$logo_output_path"
         cp -v "$icon_file" "$logo_output_path/${packageName}.png"
       done
  +
  +    mkdir -vp "$out/share/applications"
  +    cp -v "${desktopItem}/share/applications/"* "$out/share/applications"
     '';
   
     passthru = {
  
positive.code: { stdenv, fetchurl, makeWrapper, ninja, which
  
  # default dependencies
  , bzip2, flac, speex
  
negative.code:   libExecPath = "$out/libexec/${packageName}";
    sandboxPath = "${sandbox}/bin/${packageName}_sandbox";
  
    desktopItem = makeDesktopItem {
      name = "Chromium";
      exec = "chromium";
      icon = "chromium";
      comment = "An open source web browser from Google";
      desktopName = "Chromium";
      genericName = "Web browser";
      mimeType = "text/html;text/xml;application/xhtml+xml;x-scheme-handler/http;x-scheme-handler/https;x-scheme-handler/ftp;x-scheme-handler/mailto;x-scheme-handler/webcal";
      categories = "Network;WebBrowser";
    };
  
  in stdenv.mkDerivation rec {
    name = "${packageName}-${src.version}";
    inherit packageName src;
  