Examine source code of Remember Summer

{
  "theme": {
    "images": {
      "theme_frame": "RememberingSummerHCustom.jpg"
    },
    "colors": {
      "frame": "#3de4fc",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Remember  Summer",
  "manifest_version": 2,
  "description": "scatter flowers, lavender, blue, butterfly, stars, sparkle, summer, bright, My wallpaper to match can be found at: <a href=\"https://outgoing.prod.mozaws.net/v1/44aeeef9bbddd4e63c4be5fbdf16cd8176e4846e4538a0c1d28d5ff25ec46663/http%3A//nature.desktopnexus.com/wallpaper/799873/\" rel=\"nofollow\">http://nature.desktopnexus.com/wallpaper/799873/</a>"
}