child: Opacity(

opacity: _opacityTween.evaluate(animation),
        child: Container(
          margin: const EdgeInsets.symmetric(vertical: 10),
          height:

_sizeTween.evaluate(animation),
          width:

_sizeTween.evaluate(animation),
          child: const FlutterLogo(),
        ),
      ),
    );
  }
}

class LogoApp extends StatefulWidget {
  const LogoApp({super.key});

  @override
  State<LogoApp> createState() => _LogoAppState();
}

class _LogoAppState extends State<LogoApp> with SingleTickerProviderStateMixin {
  late Animation<double> animation;
  late AnimationController controller;