Examine source code of Einstein Imagination FF4

{
  "theme": {
    "images": {
      "theme_frame": "EinsteinImagination.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Einstein Imagination FF4",
  "manifest_version": 2,
  "description": "Imagination in more important than knowledge. Albert Einstein, famous quotes, Firefox 4, saparris"
}