C1RadialGauge has the special Cap property (C1GaugeCap). It draws a filled circle or several filled circles on top of the gauge pointers. It may appear behind the pointers if the BehindPointers property is set to True.

The main circle appears behind other circles that are added to the C1GaugeCap.MoreCircles collection property. Main circle may have a border while the other circles have only filling. You may also specify whether the custom image should appear instead of circles in the pointer cap.