Examine source code of Quiz Helper (Offline)

{
  "manifest_version": 3,
  "name": "Quiz Helper (Offline)",
  "version": "1.0.0",
  "description": "Offline practice overlay.",
  "permissions": [
    "activeTab",
    "scripting",
    "storage"
  ],
  "background": {
    "service_worker": "bg.js",
    "scripts": [
      "bg.js"
    ],
    "preferred_environment": [
      "service_worker",
      "document"
    ]
  },
  "action": {
    "default_title": "Quiz Helper",
    "default_popup": "popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "quiz-helper@example.com",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}