Examine source code of Holy Trinitron

{
  "theme": {
    "images": {
      "theme_frame": "xvo-persona-header.jpg"
    },
    "colors": {
      "frame": "#999999",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Holy Trinitron",
  "manifest_version": 2,
  "description": "Gradient transition from a light gray that makes the OS X title bar readable, to the charcoal gray of the Google navigation bar.\n\n OS X + Firefox + Google FTW"
}