Simple Healing / Overheal meter, can't recall

[cawfee]

Hello,

I'm looking for an AddOn I used about 2 years back. It was a simple heal / overheal monitor that resided in the bottom center of your screen and would show how much a spell heals on the target while you cast it; overheals would be displayed by the bar going past full and be progressively colored (e.g. green for minimal overhealing, yellow for medium etc.)

It was a no-frills kind of thing, but I can't for the life of me recall the name.

Thanks in advance for any hints!