Examine source code of Forza Azzurri

{
  "theme": {
    "images": {
      "theme_frame": "Italy-header.png"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Forza Azzurri",
  "manifest_version": 2,
  "description": "Soccer, Futbol, Italy, Italia, Forza Azzurri\n\n(if you can't see the footer, download <a href=\"https://addons.mozilla.org/en-US/firefox/addon/13565\" rel=\"nofollow\">https://addons.mozilla.org/en-US/firefox/addon/13565</a>)"
}