Examine source code of Self Referential

{
  "theme": {
    "images": {
      "theme_frame": "self-referential-header.jpg"
    },
    "colors": {
      "frame": "#4a4a4a",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Self Referential",
  "manifest_version": 2,
  "description": "The Self Referential is my  fervorite wallpaper created by Tom Watson (<a href=\"https://outgoing.prod.mozaws.net/v1/dd405d4abbc2d73c08ebf781b950d0566076de30df5376b5fb273aa27a594f96/http%3A//tincorporated.com/\" rel=\"nofollow\">http://tincorporated.com/</a>) and it's look good in Firefox Personas :D"
}