Examine source code of QR from selection

{
  "name": "QR from selection",
  "description": "Get a QR code for a URL, image or text quickly from your browser to your phone without any sign-in or connection.",
  "version": "1.0.0",
  "manifest_version": 3,
  "background": {
    "scripts": [
      "background.bundle.js"
    ]
  },
  "permissions": [
    "tabs",
    "contextMenus"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "action": {
    "default_title": "QR from selection",
    "default_popup": "popup.html",
    "default_icon": {
      "16": "images/qr-16.png",
      "20": "images/qr-20.png",
      "24": "images/qr-24.png",
      "32": "images/qr-32.png",
      "48": "images/qr-48.png",
      "64": "images/qr-64.png",
      "128": "images/qr-128.png",
      "256": "images/qr-256.png"
    }
  },
  "icons": {
    "16": "images/qr-16.png",
    "20": "images/qr-20.png",
    "24": "images/qr-24.png",
    "32": "images/qr-32.png",
    "48": "images/qr-48.png",
    "64": "images/qr-64.png",
    "128": "images/qr-128.png",
    "256": "images/qr-256.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{830918a5-e6db-461b-9c17-2dbbe7016f0d}"
    }
  }
}