Examine source code of Emptees

{
  "theme": {
    "images": {
      "theme_frame": "emptees-head2.jpg"
    },
    "colors": {
      "frame": "#c9c9c9",
      "tab_background_text": "#c9c9c9"
    }
  },
  "version": "2.0",
  "name": "Emptees",
  "manifest_version": 2,
  "description": "Persona for <a href=\"https://outgoing.prod.mozaws.net/v1/aad9a2fea1e775c09a4c3328e09653bc791ca697a4677d473436b85a72874c57/http%3A//Emptees.com\" rel=\"nofollow\">Emptees.com</a>"
}