Examine source code of QR Code Generator

{
  "version": "1.3",
  "manifest_version": 3,
  "homepage_url": "https://t.ly/qr-code-generator",
  "icons": {
    "16": "media/icons/icon16.png",
    "48": "media/icons/icon48.png",
    "128": "media/icons/icon128.png"
  },
  "name": "QR Code Generator",
  "description": "Generate QR codes for the current page or any link.",
  "permissions": [
    "activeTab",
    "storage",
    "scripting"
  ],
  "background": {
    "scripts": [
      "js/background.js"
    ]
  },
  "options_page": "options.html",
  "action": {
    "default_icon": {
      "38": "media/icons/icon38.png"
    },
    "default_popup": "popup.html",
    "default_title": "Generate QR Code"
  },
  "commands": {
    "_execute_action": {
      "suggested_key": {
        "default": "Ctrl+Shift+Q",
        "mac": "Command+Shift+Q"
      }
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "qrextension@t.ly",
      "data_collection_permissions": {
        "required": [
          "browsingActivity"
        ],
        "optional": [
          "authenticationInfo"
        ]
      }
    }
  }
}