Examine source code of Spring Refresher

{
  "theme": {
    "images": {
      "theme_frame": "SpringRefresherH.jpg"
    },
    "colors": {
      "frame": "#f0d573",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Spring Refresher",
  "manifest_version": 2,
  "description": "flowers, orange, yellow, swish, green, colors, spring, abstract, vines, art, lime, fresh, summer, citrus, yellow, \t\n\nDesigned by MaDonna\n\nMy wallpaper to match is at: <a href=\"https://outgoing.prod.mozaws.net/v1/a7a99baa6cd66b71f32a9d082c3ff2ca9c781b7491e5dc4ab66e6748575502c5/http%3A//nature.desktopnexus.com/wallpaper/1359216/\" rel=\"nofollow\">http://nature.desktopnexus.com/wallpaper/1359216/</a>"
}