Examine source code of SEQTA Vanced

{
  "name": "SEQTA Vanced",
  "version": "1.2.3",
  "description": "An advanced and powerful extension that provides dark-mode and custom themes for SEQTA.",
  "manifest_version": 2,
  "icons": {
    "16": "images/favicon-16x16.png",
    "32": "images/favicon-32x32.png",
    "512": "images/logo.png"
  },
  "permissions": [
    "storage"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://*.edu.au/*",
        "https://*.com/*",
        "https://*.com.au/*"
      ],
      "js": [
        "main.js"
      ],
      "css": [],
      "run_at": "document_start"
    }
  ],
  "web_accessible_resources": [
    "images/*",
    "css/*",
    "fonts/*.ttf"
  ],
  "homepage_url": "https://github.com/maxtull/SEQTAVanced",
  "browser_specific_settings": {
    "gecko": {
      "id": "{6da92bc2-6478-4a67-87b7-7993be09066d}"
    }
  }
}