/// <summary>
/// Constructs a polygon symbol in the specified color representing a pen and ink stipple effect. See https://www.esri.com/arcgis-blog/products/arcgis-pro/mapping/please-steal-this-pen-and-ink-style/
/// 
/// </summary>
{
//Note: Run withing QueuedTask
//Stipple pen and ink
var penInkRipple = SymbolFactory.Instance.ConstructPolygonSymbolWithPenInkStipple(CIMColor.CreateRGBColor(78, 133, 105), true);
CIMPolygonSymbol penInkStipple = penInkRipple;
//To apply the symbol to a polygon feature layer
//var renderer = theLayer.GetRenderer() as CIMSimpleRenderer;
//renderer.Symbol = penInkStipple.MakeSymbolReference();
//theLayer.SetRenderer(renderer);
}