trackballLineColor property

Color? trackballLineColor
final

Specifies the tooltip line color.

Widget build(BuildContext context) {
  return Scaffold(
    body: Center(
      child: SfTheme(
        data: SfThemeData(
          sparkChartThemeData: SfSparkChartThemeData(
            trackballLineColor: Colors.red
          )
        ),
        child: SfSparkLineChart(),
      ),
    )
  );
}

Implementation

final Color? trackballLineColor;