color property
Color of the connector line.
Defaults to null.
Widget build(BuildContext context) {
   return Container(
       child: SfCartesianChart(
          series: <LineSeries<SalesData,num>>[
           LineSeries<SalesData, num>(
             dataLabelSettings: DataLabelSettings(
               connectorLineSettings: ConnectorLineSettings(
                 color: Colors.red,
              )
            )
          )
        ]
      )
   );
}
Implementation
final Color? color;