When in Reaper Form, your health globe changes color from Red to White-ish. But the healthbar on top of the player model remains Green.
I believe most people that enable the option to view this healthbar on top of the model tend to look at it instead of looking at the health globe, so it would be nice if it also changed color.
This would be a neat little QoL for Hardcore for people that play with that option. A few less heart-attacks from suddenly not being completely sure if you’re in Reaper Mode or not.