Examine source code of Holiday Spark

{
  "theme": {
    "images": {
      "theme_frame": "HolidaySparkHeader.jpg"
    },
    "colors": {
      "frame": "#030303",
      "tab_background_text": "#080808"
    }
  },
  "version": "2.0",
  "name": "Holiday Spark",
  "manifest_version": 2,
  "description": "A little holiday spirit. Enjoy.\n\nX-mas \nAdobe Photoshop stamps by D-u-D. <a href=\"https://outgoing.prod.mozaws.net/v1/821e4b80a2c4331ca48e62cd8cdbe46ae0df56a6b6681faebc4772830c0397a5/http%3A//d-u-d.deviantart.com/art/Christmas-handmade-brushes-103550197\" rel=\"nofollow\">http://d-u-d.deviantart.com/art/Christmas-handmade-brushes-103550197</a>"
}