Apologies, I'm fairly new to Archicad. I have imported a colour version of an Ordnance Survey map to Archicad 21, and it looks perfect, exactly as it should. When I explode it however, everything goes black, and although I can select objects within the exploded file, I can't find a way to edit the fills. It's all the colour fills that are turning to black, but there doesn't seem to be any way to change them.