Examine source code of RotMG Cheater Database

{
  "manifest_version": 2,
  "name": "RotMG Cheater Database",
  "version": "1.2.4resigned1",
  "permissions": [
    "http://www.realmeye.com/",
    "https://www.realmeye.com/"
  ],
  "content_scripts": [
    {
      "matches": [
        "http://www.realmeye.com/*",
        "https://www.realmeye.com/*"
      ],
      "js": [
        "jquery.js",
        "rotmg-cheaters.js"
      ]
    }
  ],
  "applications": {
    "gecko": {
      "id": "jid1-I9KGnRU1CtGTCg@jetpack"
    }
  }
}