My daughter wanted to buy a Tunic of Vitality from the robe shop in the Wizard City Shopping District. She wanted to color the trim light purple, but whenever she tried to click on that square, the tag that said "Light Purple" would pop up and completely cover the color square, making it impossible to choose the color. This is true of several of the robes, but the Tunic of Vitality was the one she wanted, and I know it is a problem with that one. She got around the problem by buying it in a different color and taking it to the dye shop.
When recoloring some robes one of the other color signs block out the color I want. So this is another bug. Unless this is the bug she was dealing with.