Examine source code of Torre Nera

{
  "theme": {
    "images": {
      "theme_frame": "persona2.png"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Torre Nera",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/9298e2a87cd0f1c83e21108371257779ef2fcf66e0692590dfdde9075e045350/http%3A//www.torrenera.it\" rel=\"nofollow\">www.torrenera.it</a>"
}