Examine source code of Oase Schedule

{
  "manifest_version": 2,
  "name": "Oase Schedule",
  "version": "1.0",
  "description": "Adds a oase planning to the schedule",
  "icons": {
    "48": "icons/icon-48x48.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://student.novacollege.nl/rooster"
      ],
      "js": [
        "main.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{88906255-2141-4952-8820-07c85d91482f}"
    }
  }
}