Its mostly for a shop versus a color storage but after thinking I’ll probably just make it both a shop and a color storage.
Im very partial to grouping by color, personally and enjoy shops setup that way, but figured I’d ask about it again. The biggest issue with by group is symmetry. Thanks @DaOne82
from 1 side - number is easier to find if you know the exact number you are looking for, mod showing name and color number stopped working for me so i have to first to 2 side - shops selling items sorted by color groups looks better, and if you just want to buy color that matches your build you can see at first glance which shade is for you 
@Zjawcia if the color name/number mod stopped working I can help you get that back up and running if you depend on that mod to sort out items. 
this thing