CupertinoThumbPainter constructor
Creates an object that paints an iOS-style slider thumb.
Implementation
CupertinoThumbPainter({
this.color = CupertinoColors.white,
this.shadowColor = const Color(0x2C000000),
}) : _shadowPaint = BoxShadow(
color: shadowColor,
blurRadius: 1.0,
).toPaint();