Examine source code of Underwater Treasure

{
  "theme": {
    "images": {
      "theme_frame": "UnderwaterTreasureH.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Underwater Treasure",
  "manifest_version": 2,
  "description": "fish, aquarium, sea horse, plants, rays, coral, water, sea, ocean, The desktop wallpaper to match is at: <a href=\"https://outgoing.prod.mozaws.net/v1/eaca60973bea3d9112877b78337f8065833cac63a4c7e8f246b365766f1b00f3/http%3A//nature.desktopnexus.com/wallpaper/548517/\" rel=\"nofollow\">http://nature.desktopnexus.com/wallpaper/548517/</a>"
}