STUF unitframes

[GOSYDELIX]

Hello ppl, i recently started playing wow again and i had an idea of how to config my unitframes but i have no idea how it would work.

The idea is too have a nice simple and plain healthbar with a texture of the health-percentage on it.
And whenever my hp goes down it would get bigger to catch my attention.

Let me try to show you an example here.

100% hp

50% hp

5% hp

I hope i've been clear enough. If something seems odd just ask me and i'll try to clearify it more specificly