Examine source code of Unbelievable Sunset

{
  "theme": {
    "images": {
      "theme_frame": "StormySunsetH.jpg"
    },
    "colors": {
      "frame": "#650203",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Unbelievable Sunset",
  "manifest_version": 2,
  "description": "bay, bright, clouds, lake, ocean, orange, reflection, sea, sky, sunrise, sunset, warm, water stormy, My wallpaper to match is at: <a href=\"https://outgoing.prod.mozaws.net/v1/7ec3df5e0b594c734a5d83b0c93c1c9a9c23c37b2c93cc5cc2cb7eefa04e40d2/http%3A//nature.desktopnexus.com/wallpaper/930686/\" rel=\"nofollow\">http://nature.desktopnexus.com/wallpaper/930686/</a>"
}