Examine source code of Dreamy winter cabin

{
  "theme": {
    "images": {
      "theme_frame": "FINISH.jpg"
    },
    "colors": {
      "frame": "#d7daf7",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Dreamy winter cabin",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/6d9a29ebdbd0e8d2cd39d80e461c07ed3ea86f71975f2127fce31c4bf15a266e/http%3A//nature.desktopnexus.com/wallpaper/299095/\" rel=\"nofollow\">http://nature.desktopnexus.com/wallpaper/299095/</a>\ntrees pine fir forest snow flakes stars evening Santa Claus Christmas balls mountain snow man cheerful December scenery sky twilight magic childhood wood house chalet winter hill cold frozen chill Real.Twilight"
}