Examine source code of IO10 - InSideOut10

{
  "theme": {
    "images": {
      "theme_frame": "persona.png"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#000"
    }
  },
  "version": "2.0",
  "name": "IO10 - InSideOut10",
  "manifest_version": 2,
  "description": "IO10 first Firefox Persona\n\nINSIDEOUT10 - <a href=\"https://outgoing.prod.mozaws.net/v1/3e234bf34374db51ea7a00c6597aff8e4acd2fae05b0c52fd93c592a24a9c8ea/http%3A//www.linkedin.com/company/2184022%3Ftrk=tyah\" rel=\"nofollow\">http://www.linkedin.com/company/2184022?trk=tyah</a>\n\nCC 2011 - Built with Processing \n\nHave fun wearing it!"
}