Examine source code of Forest Light

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#0d0c0a",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Forest   Light",
  "manifest_version": 2,
  "description": "Designed by MaDonna\n\nMy wallpaper to match is at: <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/acc9f07e9edea5a37a5569c80f6b4b802c997095f4f912fb1fcee7e59965ef80/http%3A//nature.desktopnexus.com/wallpaper/1613469/\">http://nature.desktopnexus.com/wallpaper/1613469/</a>"
}