There are 3 types of healing yet glancing at the party window you can't tell if they can take repair or negative healing. Was it that wizard in the raid that was non undead or was it the other one? Did that artificer take construct essence feats? Is Robomech still a robot this life? Simple fix:
RED BAR - normal healing only, the bar we have now
YELLOW BAR - repair only, only bladesworn transformation?
ORANGE BAR (yellow + red) - can be healed normally and repaired
PURPLE BAR (blue + red) - negative healing only
This would help healers make snap decisions and easier to play with less frustration.
Expanding on this as well is shading could be used to represent healing or repair amplification. Very bright red bar, lots of amp. Bright orange would be more yellow thus more repair amp. Darker orange would mean they can be healed by repair, yet they actually have more healing amp than repair making healing more effective for them. Duller shading not so much amp.