Examine source code of January Sunset

{
  "theme": {
    "images": {
      "theme_frame": "FirefoxPersona-BLZ-JanuarySunset-header.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#f0cc9c"
    }
  },
  "version": "2.0",
  "name": "January Sunset",
  "manifest_version": 2,
  "description": "Looking west from 37.3195, -77.3581\n\nTo rate or comment, login here:\n<a href=\"https://addons.mozilla.org/en-US/firefox/addon/january-sunset/#id=271021\" rel=\"nofollow\">https://addons.mozilla.org/en-US/firefox/addon/january-sunset/#id=271021</a> \nSee all my personas here:\n<a href=\"https://addons.mozilla.org/en-US/firefox/collections/BrianZ/personas/\" rel=\"nofollow\">https://addons.mozilla.org/en-US/firefox/collections/BrianZ/personas/</a> \n\n(c) 2011 BrianZ  All Rights Reserved"
}