Examine source code of Hello Kitty it is Raining

{
  "theme": {
    "images": {
      "theme_frame": "Header.jpg"
    },
    "colors": {
      "frame": "#b1bfc2",
      "tab_background_text": "#061152"
    }
  },
  "version": "2.0",
  "name": "Hello Kitty it is Raining",
  "manifest_version": 2,
  "description": "Hello Kitty under the Rain with gray, blue, Navy blue colors. Get the same style wallpaper at <a href=\"https://outgoing.prod.mozaws.net/v1/5167fc77473dfa4ece0ef1347a5c8e6a0979437eba0434491d3565b07ed982ed/http%3A//sanrio.com\" rel=\"nofollow\">sanrio.com</a> to have a theme."
}