Examine source code of Somniyum

{
  "theme": {
    "images": {
      "theme_frame": "Somniyum-FirefoxPersona.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Somniyum",
  "manifest_version": 2,
  "description": "Have a look at <a href=\"https://outgoing.prod.mozaws.net/v1/e7b5cc28483b8871ea884a8e4c314f1b91644612fe4dc6d1d456f26105efac82/http%3A//Somniyum.com\" rel=\"nofollow\">Somniyum.com</a> to find out everything about the new production of RollerSchool Brasschaat. So much more than just artistic roller skating!"
}