This is what the readme.txt says:
*** High visibility rough & rocky terrain
A tiny mod, requested at the forums. Slaped together in a few minutes. I Hope that's what you guys had in mind.
Just the standard bitmaps with tweaked brightness, contrast & col. ballance.
Now the rocks look more like some sort of limestone & are better visible. Only summer versions included, as those lighter collored rocks won't improve visibility with snow cover present.
Tom
(I'm a geologist after all ) ***
I think I am using this in CMAK as well I am not sure though. I did look at the files in CMAK and my zip and they seem to match date wise, so I must have used this mod in CMAK as well... Methinks.