Give us more color coding options for layers (Photoshop)

We are currently limited to 6 colors plus grey for coloring / color coding layers. There is also no option to create default colors. Expecially when working with multiple artboards on a single canvas, it can make it very difficult to keep layers appart, with only six colors options. There is also no way to create default colors. I think it is time that Adobe adds more color coding options to layers. It has been done for guides, why not also add this option to layers? Makes alot more sense to add it to layers, rather than guides.