I was walking up the cake mix and sugar aisle in the grocery store today (looking for Splenda Brown; not yet on the shelves) and my eye fell on the ready-to-use icing tubes for cake decorations.
Said icings now come in black (as well as the classic colors such as red, green, and yellow). Weird. I remember when brown was new…
(If you want to get really fancy, Wilton (the cake decorating people!) carries even more colors than you may be able to find on your grocers shelf.)