Examine source code of Summer Beautiful

{
  "theme": {
    "images": {
      "theme_frame": "SpringSummerSofttlyHCustom.jpg"
    },
    "colors": {
      "frame": "#6c9162",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Summer Beautiful",
  "manifest_version": 2,
  "description": "apple blossoms, blooms, blossoms, buds, butterflies, flower petals, flowers, green, netting, spring, summer, white\t\n\nDesigned by MaDonna\n\nMy wallpaper to match is at: <a href=\"https://outgoing.prod.mozaws.net/v1/c6d6fea5ee5d6ff3ce46458e007962ff5d14e15ce29d30507c56cf20d65d2984/http%3A//nature.desktopnexus.com/wallpaper/1102909/\" rel=\"nofollow\">http://nature.desktopnexus.com/wallpaper/1102909/</a>"
}