Examine source code of Sprout

{
  "theme": {
    "images": {
      "theme_frame": "ff_header3.jpg"
    },
    "colors": {
      "frame": "#382315",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Sprout",
  "manifest_version": 2,
  "description": "Grassy field with some kids playing ( maybe mine ). This is also the background at our web development firm at <a href=\"https://outgoing.prod.mozaws.net/v1/9746f8d7a452ed57a2165f6c183727a48bed7a2c51850ba6297c9881ad689d2c/http%3A//sproutventure.com\" rel=\"nofollow\">http://sproutventure.com</a>.\n\nHope you like it."
}