Examine source code of Spring Silver

{
  "theme": {
    "images": {
      "theme_frame": "SpringsilverH.jpg"
    },
    "colors": {
      "frame": "#cfc3c3",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Spring Silver",
  "manifest_version": 2,
  "description": "butterfly, flowers, lily, nature, silver, sophisticated, spring, summer, tulips  My wallpaper to match is at: <a href=\"https://outgoing.prod.mozaws.net/v1/8e7f028c7f74c942c0e88c922eff9a6f76afe607946c55864e42a55df5d0069c/http%3A//nature.desktopnexus.com/wallpaper/985299/\" rel=\"nofollow\">http://nature.desktopnexus.com/wallpaper/985299/</a>"
}