Examine source code of Kangaroo Nap

{
  "theme": {
    "images": {
      "theme_frame": "FirefoxPersona-BLZ-KangarooNap-header.jpg"
    },
    "colors": {
      "frame": "#68413c",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Kangaroo Nap",
  "manifest_version": 2,
  "description": "To rate or comment, login here:\n<a href=\"https://addons.mozilla.org/en-US/firefox/addon/kangaroo-nap/#id=314328\" rel=\"nofollow\">https://addons.mozilla.org/en-US/firefox/addon/kangaroo-nap/#id=314328</a> \nSee all my personas here:\n<a href=\"https://addons.mozilla.org/en-US/firefox/collections/BrianZ/personas/\" rel=\"nofollow\">https://addons.mozilla.org/en-US/firefox/collections/BrianZ/personas/</a> \n\n(kangaroo, zoo, animals, Australia) \n(c) 2005 BrianZ"
}