Examine source code of Nitro Plus

{
  "theme": {
    "images": {
      "theme_frame": "APmenina.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Nitro Plus",
  "manifest_version": 2,
  "description": "A beautiful persona to your Firefox by Bellas2Thiago. Visit our website: <a href=\"https://outgoing.prod.mozaws.net/v1/9a9a4731957d003a3946645ebec1a5f8c4544d3a57c718ac8c8abb0c82bef768/http%3A//www.pururin.net/\" rel=\"nofollow\">http://www.pururin.net/</a>"
}