I have this issue too. Apparently, whenever you dye signs made before the 16.220 update, the colors are fine, but when you dye signs made after the update, the bug occurs (the color is dark than what it is supposed to be.)
Aaron Gray
I have this issue too. Apparently, whenever you dye signs made before the 16.220 update, the colors are fine, but when you dye signs made after the update, the bug occurs (the color is dark than what it is supposed to be.)