I love to use the Energy Crystals for cosmetic for various things, and is therefor my favorite go-to power transfer, but the color can often be offsetting.

I know that currently the colors are used to define the 3 tiers (Blue, Purple, Orange), but maybe that could change?
The tiers could be defined by color+slight model/particle change, or maybe that's not needed at all.
I just want to color them for cosmetic purposes :D

Hmm... will add it to the "Possible future features" list but cant promise anything.