Examine source code of Sleek Espeon

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#d1d1d1",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Sleek Espeon",
  "manifest_version": 2,
  "description": "Simple, dark Espeon persona.\n\nImage and sprites used from <a href=\"https://outgoing.prod.mozaws.net/v1/d3548797aa4024e0555cd7ded9066a4585d68c4f2481ad1c3ae18abdb13b20b8/http%3A//gallery.gtsplus.net/Espeon\" rel=\"nofollow\">http://gallery.gtsplus.net/Espeon</a>"
}