Examine source code of Neopets Mail Enhancer

{
  "manifest_version": 2,
  "short_name": "Neopets Chat",
  "name": "Neopets mail enhancer",
  "description": "This extension improves neopets inbox and view/reply messages",
  "version": "1.3.0",
  "content_scripts": [
    {
      "matches": [
        "*://www.neopets.com/neomessages.phtml?type=read_message&folder=Inbox&id=*"
      ],
      "css": [],
      "js": [
        "js/jquery.js",
        "js/smilies.js",
        "js/moment.min.js",
        "js/moment-timezone.min.js",
        "viewMail.js"
      ]
    },
    {
      "matches": [
        "*://www.neopets.com/neomessages.phtml?folder=neochat"
      ],
      "css": [
        "css/chat.css",
        "css/sidebar.css",
        "css/jquery.toastr.css",
        "fontAwesome/css/font-awesome.min.css"
      ],
      "js": [
        "js/jquery.js",
        "js/niceScroll.js",
        "js/timeago.js",
        "js/jquery.toastr.js",
        "js/smilies.js",
        "js/Template.js",
        "js/utils.js",
        "js/NeoChat.js",
        "js/moment.min.js",
        "js/moment-timezone.min.js",
        "viewChat.js"
      ]
    },
    {
      "matches": [
        "*://www.neopets.com/neomessages.phtml*"
      ],
      "js": [
        "js/jquery.js",
        "chatLink.js"
      ]
    },
    {
      "matches": [
        "*://www.neopets.com/*"
      ],
      "js": [
        "contextMenu.js"
      ]
    }
  ],
  "permissions": [
    "*://www.neopets.com/",
    "storage",
    "webRequest",
    "cookies",
    "downloads",
    "contextMenus",
    "unlimitedStorage"
  ],
  "icons": {
    "16": "images/send.png",
    "128": "images/send128.png"
  },
  "web_accessible_resources": [
    "template/*",
    "fontAwesome/fonts/*",
    "images/*",
    "changes.json"
  ],
  "background": {
    "scripts": [
      "js/smilies.js",
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{60163085-111c-47dd-949a-2eee5d04871c}"
    }
  }
}