Examine source code of Offline QR Toolkit

{
  "manifest_version": 3,
  "name": "__MSG_extensionName__",
  "short_name": "QR Toolkit",
  "version": "0.2.0",
  "description": "__MSG_extensionDescription__",
  "default_locale": "en",
  "browser_specific_settings": {
    "gecko": {
      "id": "offline-qr-toolkit@jinsei",
      "strict_min_version": "115.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "icons": {
    "48": "src/icons/icon.svg",
    "96": "src/icons/icon.svg"
  },
  "action": {
    "default_title": "__MSG_extensionName__",
    "default_popup": "src/popup/popup.html",
    "default_icon": "src/icons/icon.svg"
  },
  "options_ui": {
    "page": "src/options/options.html",
    "open_in_tab": false
  },
  "background": {
    "scripts": [
      "src/background/background.js"
    ]
  },
  "permissions": [
    "menus",
    "activeTab",
    "scripting",
    "storage",
    "clipboardWrite"
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self' 'wasm-unsafe-eval'; object-src 'self'"
  },
  "web_accessible_resources": []
}