Examine source code of NEU Dark Mode

{
  "manifest_version": 2,
  "name": "NEU Dark Mode",
  "version": "1.1",
  "description": "Make the NEU College Dashboard dark mode",
  "content_scripts": [
    {
      "matches": [
        "*://college.neu.edu.ph/*"
      ],
      "css": [
        "style.css"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{5da6470d-eed5-4d3a-bd6f-e70fa0d6671e}"
    }
  }
}