Examine source code of Winter Abstraction

{
  "theme": {
    "images": {
      "theme_frame": "WinterAbstractionH.jpg"
    },
    "colors": {
      "frame": "#ffdea2",
      "tab_background_text": "#400202"
    }
  },
  "version": "2.0",
  "name": "Winter Abstraction",
  "manifest_version": 2,
  "description": "abstract, green, red, snow, snowflakes, waves, winter, holiday, Christmas, modern, wave, My wallpaper to match is at: <a href=\"https://outgoing.prod.mozaws.net/v1/cd280c3120f410c0709c5c038cfa3ed7eb841db08eb10fe25abdf093cca6e4af/http%3A//abstract.desktopnexus.com/wallpaper/901898/\" rel=\"nofollow\">http://abstract.desktopnexus.com/wallpaper/901898/</a>"
}