BIB_blackdefault.cfg - Sets the black textures to be the default setting.
BIB_heatpatch.cfg - Makes any part with black textures radiate heat better (though still works when the part is white)
BIB_blackfairings.cfg - Replaces the fairing panel texture with a black one. Needs to be done by patch as the in-game switcher doesn't work for fairing panels.

To use, put the desired patch into the BackInBlack folder inside GameData