Examine source code of Infinitive

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Infinitive",
  "manifest_version": 2,
  "description": "All credit for this brilliant graphic to <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/6f097e82ec6a64ea854d674c64fd5dd3a3107cddeab0d6dde33e0d8d9845434c/http%3A//psdgraphics.com\">psdgraphics.com</a>\n\n<a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/f8152e9f57a055a9b97a307562b4e92c607bff042aaa493daf57370b01612c46/http%3A//www.psdgraphics.com/backgrounds/blue-magic-dust-background/\">http://www.psdgraphics.com/backgrounds/blue-magic-dust-background/</a>"
}