The Dink Network

Have you tried removing the LEFTALIGN part from the healthbar pathnames in dink.ini? I think that attribute actually makes it so the graphic won't have any transparency, black nor white... Heck, I wouldn't be surprised if that's the only thing LEFTALIGN does, and it's just rather poorly named.

EDIT: Sadly, this doesn't seem to work on ordinary sprites. You can see it in action with load_sequence_now graphics\inter\health\hm-w- 190 LEFTALIGN, though, which has both black and white pixels.