Yes, and one for Bacteria, and one for Viruses. Thanks.
Anyone have suggestions for colors?
Looks like the only colors not already spoken for are orange, yellow, and black. Yellow would probably have some visibility issues. Maybe also a darker blue (than vertebrates), or a lighter pink (than Fungi).
There are lots of intermediate or mixed colors, not all of which have common names, but any of which might work as long as the color shade is not easily confused with another major taxon.
I agree. It is confusing to have both unknown and grafted taxa labeled as gray. Yellow would probably have visibility issues as @jdmore mentioned, but I like the idea of a lilac.