Examine source code of Fractalised

{
  "theme": {
    "images": {
      "theme_frame": "head1.jpg"
    },
    "colors": {
      "frame": "#242424",
      "tab_background_text": "#9c9c9c"
    }
  },
  "version": "2.0",
  "name": "Fractalised",
  "manifest_version": 2,
  "description": "I created it for myself in the first place...\n\nLooks better when used with that theme on:\n\n<a rel=\"nofollow\" href=\"https://addons.mozilla.org/en-US/firefox/addon/4908\">https://addons.mozilla.org/en-US/firefox/addon/4908</a>\n\nThe fractal in the background is not mine, it's is from here: \n<a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/8f09f9b8578f584a027dfcb5c3c869b23f1e7f68123a743cc5097f2b56a272ec/http%3A//love1008.deviantart.com/art/Flowerings-41-92744939\">http://love1008.deviantart.com/art/Flowerings-41-92744939</a>"
}