Examine source code of Pixelized OS

{
  "theme": {
    "images": {
      "theme_frame": "pixelizedgray.png"
    },
    "colors": {
      "frame": "#a2ff00",
      "tab_background_text": "#ff00aa"
    }
  },
  "version": "2.0",
  "name": "Pixelized OS",
  "manifest_version": 2,
  "description": "Looks like standard OSX that got pixelized and messed up."
}