Examine source code of Spring Smiles

{
  "theme": {
    "images": {
      "theme_frame": "SpringSmsilesHCustom.jpg"
    },
    "colors": {
      "frame": "#d2ffc4",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Spring Smiles",
  "manifest_version": 2,
  "description": "butterflies, butterfly, floral, flowers, nature, spring, stars, summer \n\nDesigned by MaDonna\n\nMy wallpaper to match is at: <a href=\"https://outgoing.prod.mozaws.net/v1/f250c75c3c8b715a95d96bd12b4e1260f6d00bc4f087744c81a4fa7583d39408/http%3A//nature.desktopnexus.com/wallpaper/1058077/\" rel=\"nofollow\">http://nature.desktopnexus.com/wallpaper/1058077/</a>"
}