Examine source code of Default 2

{
  "theme": {
    "images": {
      "theme_frame": "header1.png"
    },
    "colors": {
      "frame": "#85818c",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "De-Fault 2",
  "manifest_version": 2,
  "description": "For those who like to get back to basics, this second version of the Default Persona will provide a balance between style and simplicity. visit us at <a href=\"https://outgoing.prod.mozaws.net/v1/8c47880cd030e80ccb4170e229e7052ef01fec4520a88c33baa75baec51c5725/http%3A//www.warrenwoodhouse.co.cc\" rel=\"nofollow\">www.warrenwoodhouse.co.cc</a> for more information about our personas and designs.",
  "browser_specific_settings": {
    "gecko": {
      "id": "{e8193510-5dc2-48ea-9824-8ba10f6ef16b}"
    }
  }
}