The dye choices are also basically paladin/bard/rogue colors. They're either all pastels or bright garish colors, or some mix with black.
My druid had virtually no way of applying a dye to armor that amde it look remotely forest-like in color palette. It's all fruity colors or red and black.
There's a Fey Wild color and swamp/sage green that sort of work but often times turn the shoulder section of the armor white, so if you have a character with white hair color it looks really bad.