SliverOpacity constructor
Creates a sliver that makes its sliver child partially transparent.
The opacity
argument must be between zero and one, inclusive.
Implementation
const SliverOpacity({
super.key,
required this.opacity,
this.alwaysIncludeSemantics = false,
Widget? sliver,
}) : assert(opacity >= 0.0 && opacity <= 1.0),
super(child: sliver);