A mod can now assign its textures with a text file named texture-mappings.txt in its mod folder. Each line names a game texture, a colon and the texture replacing it.

The lines are grouped in sections: [mission] holds the assignments for the entire mission, [levelNN] and [slevelNN] those for a single level or secret level, and an assignment for a level takes precedence over one for the mission.

A replacement is looked up in the mod's texture folders. A [settings] section can name another texture folder, and a replacement can also be given with a path relative to the game folder.