Examine source code of The Assassins

{
  "theme": {
    "images": {
      "theme_frame": "assassins-firefox-2500x200.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#00a6ff"
    }
  },
  "version": "2.0",
  "name": "The Assassins",
  "manifest_version": 2,
  "description": "It's a Design for our CoD4-Clan The Assassins."
}