Examine source code of Superbike-Coach

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#000"
    }
  },
  "version": "2.0",
  "name": "Superbike-Coach",
  "manifest_version": 2,
  "description": "Superbike-Coach owner and headcoach designed a theme for your Mozilla Firefox internet browser. Check out the website for more goodies <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/ba19a84414cb33f498120a68d6f80bfbe6e36c8476bdbf145dad4e488f554c1a/https%3A//www.superbike-coach.com\">https://www.superbike-coach.com</a>"
}