Examine source code of Vault 713 Keys

{
  "theme": {
    "images": {
      "theme_frame": "KeyPersona_H.png"
    },
    "colors": {
      "frame": "#3b0505",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Vault 713 Keys",
  "manifest_version": 2,
  "description": "A persona for users and fans of <a href=\"https://outgoing.prod.mozaws.net/v1/46ec94292a5e9510154e3b194d4738ade083fd002bccd806f286b0c15a5d8572/http%3A//Vault713.com\" rel=\"nofollow\">Vault713.com</a>, an unofficial Harry Potter role playing game."
}