Examine source code of Yellow Mellow

{
  "theme": {
    "images": {
      "theme_frame": "YellowMellowHCustom.jpg"
    },
    "colors": {
      "frame": "#f2d08c",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Yellow  Mellow",
  "manifest_version": 2,
  "description": "bright, butterflies, sparkle, sparkles, spring, stars, summer, sunny, yellow, yellow roses \n\nDesigned by MaDonna\n\nMy wallpaper to match is at: <a href=\"https://outgoing.prod.mozaws.net/v1/942518e36e90c42b1f1a090d16378039aa9bf7ff67930ddff9192737b7601f8c/http%3A//nature.desktopnexus.com/wallpaper/1065409/\" rel=\"nofollow\">http://nature.desktopnexus.com/wallpaper/1065409/</a>"
}