Examine source code of RSC Clock

{
  "manifest_version": 3,
  "name": "RSC Clock",
  "version": "1.0.0",
  "description": "A customizable clock popup with world clock slots, 12/24-hour format, seconds, fonts, and colors.",
  "permissions": [
    "storage"
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'; style-src 'self' https://fonts.googleapis.com; font-src https://fonts.gstatic.com"
  },
  "action": {
    "default_popup": "popup.html",
    "default_title": "RSC Clock"
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "contact@remoteseoconsultant.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}