backgroundColor property
Customizes the background color of the trackball tooltip. The color is set based on the current application theme, if its value is set to null.
Defaults to null
.
@override
Widget build(BuildContext context) {
return Scaffold(
body: Center(
child: SfSparkAreaChart(
trackball:SparkChartTrackball(
backgroundColor: Colors.black)
)
),
);
}
Implementation
final Color? backgroundColor;