Examine source code of red 3D

{
  "theme": {
    "images": {
      "theme_frame": "firefoxvr2.jpg"
    },
    "colors": {
      "frame": "#dfdddd",
      "tab_background_text": "#f9f6f6"
    }
  },
  "version": "2.0",
  "name": "red 3D",
  "manifest_version": 2,
  "description": "I want to thank everyone who uses this theme and let you know I've created a new theme with better graphics. Once Mozilla approves you can check it out here. <a rel=\"nofollow\" href=\"https://addons.mozilla.org/en-US/firefox/addon/red-v2/\">https://addons.mozilla.org/en-US/firefox/addon/red-v2/</a>"
}