Examine source code of Green for Green

{
  "theme": {
    "images": {
      "theme_frame": "GreenGreenGreenH.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#c1f2b1"
    }
  },
  "version": "2.0",
  "name": "Green for Green",
  "manifest_version": 2,
  "description": "abstract, Saint Patricks Day, Ireland, Irish, green, flowers, March, papillon, spring, butterflies\n\nDesigned by MaDonna\n\nMy wallpaper to match is at: <a href=\"https://outgoing.prod.mozaws.net/v1/22271426465e12cafaae7517de7d8790978f37e9477147656deb0f7a82f840ca/http%3A//abstract.desktopnexus.com/wallpaper/1371551/\" rel=\"nofollow\">http://abstract.desktopnexus.com/wallpaper/1371551/</a>"
}