CircularLegendItem constructor
      
      CircularLegendItem({ 
    
    
- required String text,
- required ShapeMarkerType iconType,
- required Color iconColor,
- required double? iconBorderWidth,
- required int seriesIndex,
- Color? iconBorderColor,
- Shader? shader,
- ImageProvider<Object> ? imageProvider,
- double? degree,
- double? endAngle,
- double? startAngle,
- bool isToggled = false,
- LegendItemTapCallback? onTap,
- ItemRenderCallback? onRender,
- ChartSeriesRenderer? series,
- int pointIndex = -1,
Implementation
CircularLegendItem({
  required super.text,
  required super.iconType,
  required super.iconColor,
  required super.iconBorderWidth,
  required super.seriesIndex,
  super.iconBorderColor,
  super.shader,
  super.imageProvider,
  super.degree,
  super.endAngle,
  super.startAngle,
  super.isToggled = false,
  super.onTap,
  super.onRender,
  super.series,
  super.pointIndex = -1,
});