ArcGIS Pro 2.6 API Reference Guide
ChartRendererDefinition Class
Members 

ArcGIS.Desktop.Mapping Namespace : ChartRendererDefinition Class
Abstract base class for the different chart renderer definitions
Object Model
ChartRendererDefinition ClassCIMColorRamp Class
Syntax
public abstract class ChartRendererDefinition : RendererDefinition 
Public MustInherit Class ChartRendererDefinition 
   Inherits RendererDefinition
Remarks
Chart symbology is most effective when mapping no more than 30 features in a 2D map. When you have more than 30 features, patterns on the map become difficult to determine
Inheritance Hierarchy

System.Object
   ArcGIS.Desktop.Mapping.LayerDrawingDefinition
      ArcGIS.Desktop.Mapping.RendererDefinition
         ArcGIS.Desktop.Mapping.ChartRendererDefinition
            ArcGIS.Desktop.Mapping.BarChartRendererDefinition
            ArcGIS.Desktop.Mapping.PieChartRendererDefinition
            ArcGIS.Desktop.Mapping.StackedChartRendererDefinition

Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 7

See Also

Reference

ChartRendererDefinition Members
ArcGIS.Desktop.Mapping Namespace