customizeSegment method
Changes the series color, border color, and border width.
Implementation
@override
void customizeSegment(ChartSegment segment) {
final AreaSegment areaSegment = segment as AreaSegment;
areaSegment._color = areaSegment._seriesRenderer._seriesColor;
areaSegment._strokeColor = areaSegment._seriesRenderer._seriesColor;
areaSegment._strokeWidth = areaSegment._series.width;
areaSegment.strokePaint = areaSegment.getStrokePaint();
areaSegment.fillPaint = areaSegment.getFillPaint();
}