BSP's and ColorLib's

How the hell...

k so I got a BSP made in Meshworks. It uses white, and red colors. Now usually red = the arc-line color. But when I use BSPSplitter using the Avara ColorLib, it turns it all white so I cant get two tone colors.

How the hell do you make it not do this??

Ive read what Juri says in lvl manager but thats a half-assed explanation. Can you only do this with Strata?? I see none of the 'color grouping' he speaks of, in Meshworks.