Examine source code of Perdidao

{
  "theme": {
    "images": {
      "theme_frame": "persona2.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Perdidao",
  "manifest_version": 2,
  "description": "Made based on my future website <a href=\"https://outgoing.prod.mozaws.net/v1/5c55e4ee6c4328e879cde95062fe9056669199bbabd5e67aa7045bddf1afd861/http%3A//www.perdidao.net\" rel=\"nofollow\">http://www.perdidao.net</a>;"
}