This also doesn't seem to work, unless the nofog is checked on a model the outlining color is still the same as the active fog color:(

I made a few tests, it looks like the code is working when level is compiled with GS version7.84 but not with GS version 7.50. Is there any way I can reproduce the same effect with 7.50? I tried replacing default.fx from 7.50 with the one from 7.84 by putting it in the same folder as the level but the effect was the same.