I submitted a ticket for this and was redirected here, so here goes:
I know that they’re working on cross-core customization, so I hope this gets addressed soon. I was greatly disappointed to find that I can’t use the same colors on all my spartan cores. I love the idea of having a uniform set of armor cores to choose from that all match with their color scheme. I find it especially disheartening, because I use Cadet Violet, one of the colors given at the start to players for their Mk. VII and Mk. V cores. A stock, F2P armor coating that is content locked to 1 core for free to play and 2 cores if you got the S1 Battle Pass. I understand that the modeled pieces could give staff a hard time to make everything fit and look good on all the armor core models, but I would think the color schemes from the armor coatings would be much easier to enable across all cores, particularly the starting colors. I hope the issue is rectified soon, and that it won’t be an issue for new cores going forward. I can’t wait to see all my cores in violet!