borderColor property

Color? borderColor
final

Customizes the border color of the marker. The color of the border gets applied based on the current theme of the application if the border color value is set to null.

Defaults to null.

@override
Widget build(BuildContext context) {
  return Scaffold(
    body: Center(
       child: SfSparkAreaChart(
      marker: SparkChartMarker(
         borderColor: Colors.red)
        )
     ),
  );
}

Implementation

final Color? borderColor;