I was under the impression they are OGV videos; I'd check but I have no Starcraft II access right now. Just open up the SCII MPQs and have a look, there's an article on the wiki about MPQ editing.
Red classic.
"In short, their absurdities are so extreme that it is painful even to quote them."
O)FaRTy1billion[MM] -- the setting exists, it's just hidden in a weird place
[04:04 am]
O)FaRTy1billion[MM] -- instead change "Microtile Overlay" to "Impassable"
[04:04 am]
O)FaRTy1billion[MM] -- er, wait, idk why i was looking for height
[04:03 am]
O)FaRTy1billion[MM] -- below the minimap should be a thing that says "Overlay Settings" with a little + button in the corner, press the + to expand it, uncheck Use Defaults, then change "Tile Overlay" to "Height"