Examine source code of Have a ball

{
  "theme": {
    "images": {
      "theme_frame": "Rollingheader.jpg"
    },
    "colors": {
      "frame": "#805416",
      "tab_background_text": "#662809"
    }
  },
  "version": "2.0",
  "name": "Have a ball",
  "manifest_version": 2,
  "description": "Hopefully nice to look at.\n\nVisit my website if you like. There you´ll find more art. Although it´s in swedish you can click on \"galleri\" (gallery) for a look at my works.\n\n<a href=\"https://outgoing.prod.mozaws.net/v1/9fbda0e6be479fa52c4e3341e6f9cc5c02fda001b01b34d43215b86ee1139f22/http%3A//www.artbymo.se\" rel=\"nofollow\">www.artbymo.se</a>"
}