Examine source code of ID WebDesign

{
  "theme": {
    "images": {
      "theme_frame": "header1.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "ID WebDesign",
  "manifest_version": 2,
  "description": "A creative firefox persona skin designed by Amit Khatri from www.infodreamz.com, a webdesign, development, xhtml/css and SEO company. Have it free to skin your firefox. Cheers"
}