Examine source code of Magic Duel

{
  "theme": {
    "images": {
      "theme_frame": "MDserious1.5.1.jpg"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#000"
    }
  },
  "version": "2.0",
  "name": "Magic Duel",
  "manifest_version": 2,
  "description": "A persona made from the unique browser RPG MagicDuel MagicDuel is not something for anybody to master, but for everybody to experience. Now, take a part of your true identity and turn it in a MD Character, what are you waiting for? \nGo to: <a href=\"https://outgoing.prod.mozaws.net/v1/2a0e0c4a14df2af443b91d275fb4864ca78041b63f401630f71eaf9890a79cf6/http%3A//magicduel.com/\" rel=\"nofollow\">http://magicduel.com/</a>\nAny suggestions for the persona go here: <a href=\"https://outgoing.prod.mozaws.net/v1/26b76ac492d4c6dc1ef6f7e77025bf879a5760ed483e7ed6288c7acb24dd7467/http%3A//magicduel.invisionzone.com/topic/9405-magic-duel-personas\" rel=\"nofollow\">http://magicduel.invisionzone.com/topic/9405-magic-duel-personas</a>"
}