Examine source code of JamBox

{
  "theme": {
    "images": {
      "theme_frame": "jambox-header.jpg"
    },
    "colors": {
      "frame": "#cfcfcf",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "JamBox",
  "manifest_version": 2,
  "description": "A test Persona for small icons navigation only. If lots of users are having trouble with it I can submit the default layout version. So far looks good in my browser. Win XP 1280 x 1024"
}