Change blight minimap color

[GrapesOfWath]

Hi! I've found a way to change blight minimap color with local files, which is editing the FogColorBlightMask value in UI\MiscData.txt. The problem with this, however, is that it will only work with single-player, as trying to play battle.net games with local files enabled causes a crash immediately after loading screen. I'm not a war3 wizard quite yet though, so I was wondering if anyone here knows how to extrapolate this knowledge to provide a way to get this functionality to work in a map-by-map basis? I have, of course, tried importing the MiscData.txt to my map (with the path UI\MiscData.txt), but that didn't actually do anything. If anyone has any thoughts on the matter, that would be greatly appreciated. Thanks!

EDIT: it would appear that customizing miscdata.txt does not actually cause a crash, but I still want it to be map-wide and only for this map

 

[Pyrogasm]

My intuition is that this can't be done except by a player making their own MiscData.txt, though I realize this is not a particularly helpful reply to read.