Examine source code of STELLONE

{
  "theme": {
    "images": {
      "theme_frame": "33copia.jpg"
    },
    "colors": {
      "frame": "#f7ff00",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "STELLONE",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/6d032cb47ace28466053e4da43302b40c1e834185068aedb751125436108a391/http%3A//vulcanochat.com/\" rel=\"nofollow\">http://vulcanochat.com/</a>"
}