By default, the ExcludeParentFromItems property is False. The ExcludeParentFromItems property gets or sets a value that specifies whether the parent portion of the control is excluded from the items zone. The The ExcludeParentFromItems property has effect, only if the ParentBackColor property is -1. The ParentBackColor / ParentBackAlpha property specifies the color / transparency to show the parent portion of the radial menu. The RadialLineColor(exRadialParentBorder) property specifies the color to show the border around the parent section of the control. The RadialLineColor(exRadialHotParent) property specifies the color to show the border around the parent section of the control, while the cursor hovers the parent section.

The following screen shot marks the parent zone ( in red ), being completed by the items: