Examine source code of Oak Theme

{
  "theme": {
    "images": {
      "theme_frame": "oakx.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Oak Theme",
  "manifest_version": 2,
  "description": "Oak Theme.\nYou could see my other personas here : <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/df697edcadd9de694c503784679c6d7864ab52d0330b43beac37033263849b7e/http%3A//www.getpersonas.com/gallery/Designer/maglev\">http://www.getpersonas.com/gallery/Designer/maglev</a>"
}