Examine source code of PortalRox - Mozilla

{
  "theme": {
    "images": {
      "theme_frame": "portalroxtoolbar.png"
    },
    "colors": {
      "frame": "#262626",
      "tab_background_text": "#262626"
    }
  },
  "version": "2.0",
  "name": "PortalRox - Mozilla",
  "manifest_version": 2,
  "description": ";D Escolha-me o Skin do Mozilla do PortalRox! <a href=\"https://outgoing.prod.mozaws.net/v1/0fad96b7fa250bf2fb389d1ff10ebfeb82a831f816b01771274678bb4476aa9c/http%3A//www.portalrox.com.br\" rel=\"nofollow\">www.portalrox.com.br</a>"
}