http://forums.rptools.net/viewtopic.php?f=53&t=18277
I wanted to tweak them a bit and mess around with the color scheme. So I made these:
Here is a screenshot:
Spoiler
Damage is represented by an empty "box".
Temp hitpoints are green and the meter is not divided into sections.
The red meter represents negative hitpoint damage.
Non-lethal damage is represented by white-gray. I wanted it to be similar to looking like the empty box (damage) so it looks like the box is emptying from both sides (with Non-lethal being a slightly different shade).