UI: Shields should add "Blue" over your Health Bar.

[Noxifer]

i would prefer INCOMING HEALS

The problem with that is how to handle critted heals. Would you be able to see beforehand if you'd get a critted heal (bigger "extraHP bar")? Or would it only represent the "normal" average heal? Since healing isn't a specific number but a variable to begin with, even if you don't take crits into account, I mean.

But OP, I like your idea ^^ Have my upvote/like.