property ChartView.LinkColor as Color
Specifies the color for links.

TypeDescription
Color A color expression that indicates the color for links between nodes. 

If the LinkColor property is equal with BackColor property no links are painted. Use the LinkAssistantColor property to specify the color of the links between assistant nodes. Use the PenLink property to define the pen used to paint the links between nodes. For instance, the LinkColor property has the same value as BackColor property, the control doesn't paint the links between the nodes. Use the PenWidthLink property to specify the thickness of the links between nodes.