Examine source code of Guarantee symbol

{
  "manifest_version": 2,
  "name": "Guarantee symbol",
  "version": "1.0",
  "description": "Guarantee symbols are commonly used in products, services, e-commerce apps, warranties, and quality assurance.",
  "icons": {
    "48": "icon.png"
  },
  "browser_action": {
    "default_icon": "icon.png",
    "default_popup": "popup.html",
    "default_title": "Click me!"
  },
  "permissions": [
    "activeTab"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{f18da75e-33ad-4a50-86b0-e70632d830f3}"
    }
  }
}