anchor.diff:      fontconfig
       pango
       atk
  -    gtk2
  +    gtk3
       glib
       freetype
       dbus
  
positive.code: 
    desktopItem = makeDesktopItem {
      name = "rndebugger";
      exec = "React\\ Native\\ Debugger";
      desktopName = "React Native Debugger";
      genericName = "React Native Debugger";
      categories = "Development;Debugger;";
  
negative.code: { stdenv, fetchurl, unzip, cairo, xorg, gdk-pixbuf, fontconfig, pango, gnome3, atk, at_spi2_atk, at-spi2-core
  , gtk3, glib, freetype, dbus, nss, nspr, alsaLib, cups, expat, udev, makeDesktopItem
  }:
  
  let
  