What Does the Outer Ring on the Color Setup Layer do?

When figures that contain an outer ring on the Color Setup layer are grouped using the cluster tool, this outer ring will remain intact, allowing DynaScape Color to color each individual figure in one step. Without this outer ring, some grouped figures will color as a group (not individually) and others will not color at all. Even though the Color Setup layer is not visible in the Design and Softscape Modes, DynaScape Color will still be able to find and color them.