dralasite vision and painting?

By the book dralasites see in black and white thought their sense of smell compensates <br /><br />by the book dralasites on Inner Reach dye their skin with washable dyes to reflect their mood for the day.<br /><br />really? a color blind being uses color to reflect mood?<br /><br />forgive me if this topic has been discussed before but it just hit me.