Examine source code of Mundo VT

{
  "theme": {
    "images": {
      "theme_frame": "Persona_Tuning_Virtual.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Mundo VT",
  "manifest_version": 2,
  "description": "Persona of site Mundo VT\n\n<a href=\"https://outgoing.prod.mozaws.net/v1/1db7a6d4ad5b5d1824b9b581615d6e3d147e7c92ab1a71f4eb14a9b19cb15c4a/http%3A//www.mundovt.com\" rel=\"nofollow\">www.mundovt.com</a>"
}