Examine source code of dalenryder bubbles

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#2b2b2b",
      "tab_background_text": "#d9d9d9"
    }
  },
  "version": "2.0",
  "name": "dalenryder bubbles",
  "manifest_version": 2,
  "description": "Abstract Theme with bubbles\n\nPlease Donate: <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/18a093d9f2cb837ccbf773781a7fcfc3a130053955ceb4aab0cb65564fc8b6cd/http%3A//www.dalenryder.com/Donate.html\">http://www.dalenryder.com/Donate.html</a>"
}