Examine source code of Flower Mirage

{
  "theme": {
    "images": {
      "theme_frame": "FlowerMirageH.jpg"
    },
    "colors": {
      "frame": "#0c174f",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Flower Mirage",
  "manifest_version": 2,
  "description": "My wallpaper to match is at: <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/28de51ab17fdd41ae3a088b3296b5ece514d24ee9808c256b500d6b433eb5462/http%3A//nature.desktopnexus.com/wallpaper/996166/\">http://nature.desktopnexus.com/wallpaper/996166/</a>"
}