Examine source code of C.A.E.L.A. Urbex

{
  "theme": {
    "images": {
      "theme_frame": "header-3.jpg"
    },
    "colors": {
      "frame": "#ed6f00",
      "tab_background_text": "#ebebeb"
    }
  },
  "version": "2.0",
  "name": "C.A.E.L.A. Urbex",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/ad57734642e2ce5e86ce551dbe6ad43d58f85e6e51455229797b1d4ac4229f54/http%3A//www.caela.com.ar\" rel=\"nofollow\">www.caela.com.ar</a>"
}