Helping with Identifying UI

[Gorthag]

3. The in-game damage display (where the white and yellow numbers appear in melee) shows "Critical" when you crit the target.

I'm pretty sure this is another standalone addon called Scrolling Combat Text, it shows incoming damage numbers floating above your head along with other combat notices including when critical hits are landed or buffs/debufs are gained or lost.

You can find the addon for download here. I've used it for awhile and would highly recommend it.

Gorthag