Examine source code of Dynasty User Interface

{
  "manifest_version": 2,
  "name": "Dynasty User Interface",
  "version": "2.0.3resigned1",
  "description": "An extension that makes playing in Primetime Soap Operas and Dynasty II: The Colbys a heck of a lot easier.",
  "permissions": [
    "http://thedynastyleague.com/*",
    "http://dev.thedynastyleague.com/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "file://*/test/clubhouse.html",
        "http://games.espn.com/ffl/*?*leagueId=122885*",
        "http://games.espn.com/fba/*?*leagueId=119576*"
      ],
      "js": [
        "jquery-3.1.1.min.js",
        "dui.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{fa5949a8-4425-4351-95f0-edde8eb50b3e}"
    }
  }
}