What determines what bitmap P3Dv6 uses for the supplied LandClasses? For example (in terrain.cfg):
Name=LandClassPoly_Dry_Woody_Scrub
Color=FF00C000
guid={65C30B4C-C922-4696-94C7-2ABC27B5C702}
Textures=DRY_WOODY_SCRUB
What controls what bitmap is used for each season for DRY_WOODY_SCRUB?