Examine source code of SwCacheWatch

{
  "manifest_version": 3,
  "name": "SwCacheWatch",
  "version": "1.0.0",
  "description": "Inspect service worker registrations, controller state, and Cache API keys.",
  "icons": {
    "48": "cachemark/icon-48.png",
    "96": "cachemark/icon-96.png",
    "128": "cachemark/icon-128.png"
  },
  "action": {
    "default_title": "SwCacheWatch",
    "default_popup": "ui/monitor.html",
    "default_icon": {
      "48": "cachemark/icon-48.png"
    }
  },
  "permissions": [
    "activeTab",
    "scripting",
    "clipboardWrite"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{5747d0d3-d412-4ab0-9933-9cc8c7783e57}",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}