Examine source code of Glowing Green Tree

{
  "theme": {
    "images": {
      "theme_frame": "GreenGlowingTreeH2.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#00ff33"
    }
  },
  "version": "2.0",
  "name": "Glowing Green Tree",
  "manifest_version": 2,
  "description": "Christmas, green, green on black, sophisticated, tree, Xmas, Feliz Navidad, glowing, stars, \n\nDesigned by MaDonna\n\nMy wallpaper to match is at: <a href=\"https://outgoing.prod.mozaws.net/v1/bb874a0d4a21c61f5758561a871b56f6213d22b52cf8baab16cc1b5de9be2fde/http%3A//abstract.desktopnexus.com/wallpaper/898276/\" rel=\"nofollow\">http://abstract.desktopnexus.com/wallpaper/898276/</a>"
}