// Only show partial configurations, please refer WhatsNewContent to view more configurations
WhatsNew.show(context, WhatsNewContent(
      backgroundColor: Colors.white,
      title: 'What\'s New',
      titleColor: Colors.black,
      primaryButtonText: 'Let\'s Go',
      primaryButtonTextColor: Colors.white,
      primaryButtonBackgroundColor: Colors.red,
      secondaryButtonText: 'Learn more',
      secondaryButtonTextColor: Colors.red,
      transitionDuration: Duration(milliseconds: 350),
      featureItemTransitionDuration: Duration(milliseconds: 350),
      hideSecondaryButton: false,
      dismissible: false,
      callback: this,
      features: [
        Feature(
            icon: 'assets/camera-iris.png',
            iconColor: Colors.red,
            title: 'Title four',
            titleColor: Colors.black,
            description: 'Lorem ipsum dolor sit amet',
            descriptionColor: Colors.grey
        ),
        Feature(
            icon: 'assets/cellphone.png',
            iconColor: Colors.red,
            title: 'Title five',
            titleColor: Colors.black,
            description: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt',
            descriptionColor: Colors.grey
        )
      ],
    ));

var content = WhatsNewContent(...)

Navigator.of(context).push(WhatsNew(content));