Examine source code of Xtreme Jumps

{
  "theme": {
    "images": {
      "theme_frame": "header_2.png"
    },
    "colors": {
      "frame": "#cccccc",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Xtreme Jumps",
  "manifest_version": 2,
  "description": "Persona for the website <a href=\"https://outgoing.prod.mozaws.net/v1/bf8044d2d8c57453eb36f04526393bf94d87b35b9b88552a4730d64d195c9bf6/http%3A//Xtreme-Jumps.eu\" rel=\"nofollow\">Xtreme-Jumps.eu</a>"
}