Examine source code of Refreshing..

{
  "theme": {
    "images": {
      "theme_frame": "RefreshingH.jpg"
    },
    "colors": {
      "frame": "#bdeda4",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Refreshing..",
  "manifest_version": 2,
  "description": "green, leaves, summer, spring, dew drops,Lady bug, ladybug, refreshing, fresh, leaves, new, fresh, My wallpaper to match is at: <a href=\"https://outgoing.prod.mozaws.net/v1/589220abd8410efb0c8fba8ba8b931afc38a53a491d1804e3834691d84e9a1f4/http%3A//nature.desktopnexus.com/wallpaper/715054/\" rel=\"nofollow\">http://nature.desktopnexus.com/wallpaper/715054/</a>"
}