Is it possible to make an option to have different block textures based on what y-level the block is on? MCPatcher has an option to where blocks can be changed based on a set height range and I was wondering if something similar could be implemented into CTM. I was trying to make a pack where the blocks at the height limit are a different color, but I can't find a way to put that into CTM.

This isn't a feature in CTM or this port and thus I will not add it to this port, but I will start making an extensions mod for CTMF soon and I will include this feature. It will be a separate mod on a separate repository.