Examine source code of HHN 21 Cards

{
  "theme": {
    "images": {
      "theme_frame": "HHN21_Firefox_Header_Cards.png"
    },
    "colors": {
      "frame": "#fff3e2",
      "tab_background_text": "#f1e5d4"
    }
  },
  "version": "2.0",
  "name": "HHN 21 Cards",
  "manifest_version": 2,
  "description": "Halloween Horror Nights® 21 at Universal Studios® Florida\nSelect Nights, Sept. 23–Oct. 31\n\nTry your luck and see if you survive 8 all-new haunted houses, \n6 bloodcurdling scare zones, and 2 outrageous live shows. \nWatch what you wager…the house always wins!\n\nVisit <a href=\"https://outgoing.prod.mozaws.net/v1/2f912f7f7b54b123f3ae205cbb09b7fb890c0a31e434376c779e3fd5067cde14/http%3A//www.HalloweenHorrorNights21.com\" rel=\"nofollow\">www.HalloweenHorrorNights21.com</a> for more details.\n\nUniversal elements and all related indicia TM &amp; © 2011 Universal Studios. © 2011 Universal Orlando. All rights reserved."
}