I'll probably update it some more in the future as i figure out more stuff.
Update: 9/5/2013
Now compatible with both 4:3 and 16:9 aspect ratios, will hopefully get 16:10 compatibility done soon. In addition, the GZDoom version contains both 4:3 and 16:9 ratio versions, and will switch between them automatically when you switch aspect ratios. This doesn't seem to work for Zandronum though, so they had to be seperate files.
A couple new little features also include a toggleable respirator (courtesy of Max Dickings), which can be turned on or off using the + or - keys (ie screenblocks 11 has no respirator, screenblocks 12+ do), and Max Dicking's holo/glowing border effects.
Screenshot:
Spoiler:Credits:
ID Software
Banjo Software
Wildweasel
Max Dickings
---Downloads---
All-in-one zip file (contains both GZDoom) and Zandronum versions:
http://www.mediafire.com/download/2a2w2 ... 1a_fix.zip
Old versions (1.0) - Not 4:3 compatible.
Spoiler:
Brutal Doom compatible, and should be compatible with most Doom wads as well, as long as they don't rely heavily on a built-in ACS status bar or something of the sort. Make sure to load it last in case you're playing a wad that has custom status bar graphics (such as Equinox and the like)