Remember using an addon which had this in it before I started using Ishtara UI.
Was nice with the "bar under fubar background" that changed color depending on the class of my character.
Forgot the name of the name of the ui tho : \
The UI you're talking about I'm guessing is LynUI which can be found here.
The border of the bottom bar and the border around the minimap change color depending on your class.
Originally Posted by Valleera
I'll miss how the old Tree of Life looked like it was in a constant state of panic while healing, running around with its arms flailing up in the air going "OH GOD, HOW DID I GET HERE? I AM NOT GOOD WITH INTERNETS!"