Examine source code of Misty River Sunset

{
  "theme": {
    "images": {
      "theme_frame": "MistyRiverSunsetH.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Misty River Sunset",
  "manifest_version": 2,
  "description": "fog, river, trees, sunset, fall, autumn, early winter, sky, My wallpaper to match can be found at: <a href=\"https://outgoing.prod.mozaws.net/v1/3b61954d407c720dec0de8946384821c1cbcc1dc82f79337ac4d9bb47ab6d6ab/http%3A//nature.desktopnexus.com/wallpaper/772616/\" rel=\"nofollow\">http://nature.desktopnexus.com/wallpaper/772616/</a>"
}