Perks in MP are color-coded by what Perk slot they occupy. That is a mutually exclusive choice. Perks in WZ are consumables. You can carry as many as you have Inventory room for. They can not be color-coded in the same way because Blackout doesn't have the concept of Create a Class. If you were to try and color code MP perks into some logical way that uses 3 (or even 5) colors you would find yourself hard pressed to find a color scheme that works for everyone equally.
Additionally, the number of, variety of, and game play attributes of each has not allowed them to be categorized by colors. You end up with a a few in a color-coded category that you can explain, but you end up with just as many that can't be and/or end up as only 1 or 2 in a category. It might be "mostly" about stealth or "kinda" about healing and then you have something "largely" about movement, but it also modifies healing mechanics.
In the end, you end up with a rainbow of colors that can make make less sense than trying to learn the icons. You end up 1 or 2 things that don't fit in any box and end up in a miscellaneous pile. You end up with perks that use colors differently than MP which create inconsistency the other way for people who play both MP and Blackout.
I thought we would be able to color code them as well (hence why they were color-coded in the beta) ... but it actually just ended up limiting our options and forcing us try and cram a square Perk into a round, color coded, 'by type' hole.
We have no plans on color coding Perks in Blackout at this time.
-V