Examine source code of Notification Blocker

{
  "manifest_version": 3,
  "name": "Notification Blocker",
  "version": "1.5.0",
  "description": "Block desktop notifications from specific sites using the contentSettings API.",
  "options_ui": {
    "page": "src/pages/options/index.html",
    "open_in_tab": true
  },
  "action": {
    "default_popup": "src/pages/popup/index.html",
    "default_icon": {
      "32": "icons/icon-32.png"
    }
  },
  "icons": {
    "128": "icons/icon-128.png"
  },
  "permissions": [
    "activeTab",
    "contentSettings",
    "storage"
  ],
  "web_accessible_resources": [
    {
      "matches": [],
      "resources": [
        "icons/icon-128.png",
        "icons/icon-32.png"
      ]
    }
  ],
  "background": {
    "scripts": [
      "service-worker-loader.js"
    ],
    "type": "module"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "notification-blocker@algoritmo.lat",
      "strict_min_version": "109.0"
    }
  }
}