Examine source code of Ravens Rest

{
  "theme": {
    "images": {
      "theme_frame": "RavensRest.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Ravens Rest",
  "manifest_version": 2,
  "description": "columns, moon, birds, raven, crow, sky, arch, goth, gothic, dark, mysterious, magical, fantasy, haunting, blue. My desktop wallpaper to match is at: <a href=\"https://outgoing.prod.mozaws.net/v1/ddfd76d47566a7cba74d8ccc7807fcb66f49e9f040dc2f0ce91541242933be77/http%3A//nature.desktopnexus.com/get/593138\" rel=\"nofollow\">http://nature.desktopnexus.com/get/593138</a>"
}