Led, last I checked you use StUF for your unitframes. However, I wasn't aware that StUF had a HP Deficit option... how did you do this? Wait... you probably just set the backdrop color to classcolored, and the statusbar to the black/dark color... d'oh :P
Now I just wish I could achieve an oUF_Nin effect with StUF
Sadly, StUF's author isn't responding to me asking for the feature to be added :P It's in StUF_Raid, after all! I can't port it over, no matter how hard I try =/
/meaningless post