Examine source code of Tommy Gunn design

{
  "theme": {
    "images": {
      "theme_frame": "firefox_theme_tg.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Tommy Gunn design",
  "manifest_version": 2,
  "description": "this is taken from my band's myspace design <a href=\"https://outgoing.prod.mozaws.net/v1/f4ac8948784812df58cd60c2958a3e840393e5c52537387b935f50956289b828/http%3A//www.myspace.com/tommygunnband\" rel=\"nofollow\">http://www.myspace.com/tommygunnband</a>"
}