Examine source code of Winter Lights Collage

{
  "theme": {
    "images": {
      "theme_frame": "HeaderCustom.jpg"
    },
    "colors": {
      "frame": "#62a9ff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Winter Lights Collage",
  "manifest_version": 2,
  "description": "winter, Christmas, window, arch, trees, blue, clock time, ice, snow, cold, goth, Gothic, My wallpaper to match is at: <a href=\"https://outgoing.prod.mozaws.net/v1/53586ea0d2caeac49c2767fa74d56bc7e4f1b2fd68cb89bf5baf59862693eb20/http%3A//nature.desktopnexus.com/wallpaper/850452/\" rel=\"nofollow\">http://nature.desktopnexus.com/wallpaper/850452/</a>"
}