AboutDrawerItem({Key key, Widget icon: const Icon(null), Widget child, String applicationName, String applicationVersion, Widget applicationIcon, String applicationLegalese, List<Widget> aboutBoxChildren })

Creates a drawer item for showing an about box.

The arguments are all optional. The application name, if omitted, will be derived from the nearest Title widget. The version, icon, and legalese values default to the empty string.

Source 

AboutDrawerItem({
  Key key,
  this.icon: const Icon(null),
  this.child,
  this.applicationName,
  this.applicationVersion,
  this.applicationIcon,
  this.applicationLegalese,
  this.aboutBoxChildren
}) : super(key: key);