Examine source code of Happy and Snappy

{
  "theme": {
    "images": {
      "theme_frame": "Firefox-Four-Happy-Snappy-Stickers.jpg"
    },
    "colors": {
      "frame": "#f3db5b",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Happy and Snappy",
  "manifest_version": 2,
  "description": "The new Firefox is fun and fast - it's happy and snappy!\n\n(I've created this persona to accompany my winning design in the Firefox 4 T-shirt Design Challenge.)"
}