Examine source code of Default

{
  "theme": {
    "images": {
      "theme_frame": "header1.png"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "De-Fault",
  "manifest_version": 2,
  "description": "This is a re-customized default persona, for those who like to get back to basics.\n\nIf you want to create your own please feel free to visit my website for more details <a href=\"https://outgoing.prod.mozaws.net/v1/8c47880cd030e80ccb4170e229e7052ef01fec4520a88c33baa75baec51c5725/http%3A//www.warrenwoodhouse.co.cc\" rel=\"nofollow\">www.warrenwoodhouse.co.cc</a> or please visit the official mozilla website at <a href=\"https://outgoing.prod.mozaws.net/v1/eb3a0bfd006bb20a1c474572299801e8db610af9abae01678dfbc40867d59bb3/http%3A//www.mozilla.org\" rel=\"nofollow\">www.mozilla.org</a> and visit <a href=\"https://outgoing.prod.mozaws.net/v1/bda24eba4e3eeb6e74946dcfcc4ad7ae8b87e192e8266cf75786441d8a3b31e8/http%3A//www.firefox.com\" rel=\"nofollow\">www.firefox.com</a> for further information.",
  "browser_specific_settings": {
    "gecko": {
      "id": "{ffae6000-343b-4f3d-affe-57aff1a6d6bf}"
    }
  }
}