Examine source code of Wheatstorm

{
  "theme": {
    "images": {
      "theme_frame": "wheatstormheader.jpg"
    },
    "colors": {
      "frame": "#666666",
      "tab_background_text": "#6c8da1"
    }
  },
  "version": "2.0",
  "name": "Wheatstorm",
  "manifest_version": 2,
  "description": "A storm over a field of wheat, from a wallpaper found here: <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/fbc1aae544ad7a0153534a02b086ba6113433c6854665719724c630dd5f15f34/http%3A//www.zixpk.com/2009/03/autumn.html\">http://www.zixpk.com/2009/03/autumn.html</a>"
}