AnimatedCrossFade(
duration: const Duration(seconds: 3),
firstChild: const FlutterLogo(style: FlutterLogoStyle.horizontal, size: 100.0),
secondChild: const FlutterLogo(style: FlutterLogoStyle.stacked, size: 100.0),
crossFadeState: _first ? CrossFadeState.showFirst : CrossFadeState.showSecond,
)