Examine source code of URL QR Generator

{
  "manifest_version": 3,
  "name": "URL QR Code Generator",
  "version": "1.0",
  "description": "Generates a QR code for the current page's URL.",
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  },
  "permissions": [
    "activeTab"
  ],
  "action": {
    "default_icon": "icons/icon-48.png",
    "default_title": "Generate QR Code",
    "default_popup": "popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "qr-code-generator@the_gujarati"
    }
  }
}