I like the color option for layers but wish it did not affect the COS color.
Over the last few years, I've notice an uptick in the layer color usage especially if my co-worker is coming from a Icem or Catia background. Often, I have to set all of the layers to default(none) so I can interact with them especially when trimming.
For example, f the layer color is set to orange then its difficult to tell the difference between a COS, Isoparms, and surface edges.