public ChartFillBase MarkerFill {get; set;}
This property provides a way to customize the marker fill color for an individual data point in the series.
A value of null implies that the marker fill color is not explicitly set on this data point, and should inherit the value from it's associated Series.
Use the Series.MarkerFill property to customize the fill color for all markers in the series.
Target Platforms: Android 4.4+, iOS 8+
Development Environments: Visual Studio 2015+, Visual Studio for Mac Preview, Xamarin for Visual Studio 4.2+