Examine source code of Spring Arrives

{
  "theme": {
    "images": {
      "theme_frame": "SpringArrivalsH2.jpg"
    },
    "colors": {
      "frame": "#360f22",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Spring  Arrives",
  "manifest_version": 2,
  "description": "flowers, glow, pink blossoms, purple, shine, sky, spring, stars, summer, tree, My wallpaper to match is at: <a href=\"https://outgoing.prod.mozaws.net/v1/b3360593ff2cfdfe1dcce384a064e0a022017b12c701e8880febcc7de289bd01/http%3A//nature.desktopnexus.com/wallpaper/958220/\" rel=\"nofollow\">http://nature.desktopnexus.com/wallpaper/958220/</a>"
}