I want to recolor the shower curtain for the BG AquaPlus Shower Stall to make it slightly seethru. When I test my recolor the whole shower itself is seethru. How do I get just the curtain to be seethru and not the rest of the tub/shower?

Transparent parts need to be in their own separate parts of the mesh to look good as transparent. If there's just one mesh group for the entire item, you'll get weird effects on the opaque parts, too.

Haven't looked at the mesh, but I'm guessing the shower and curtain is just one group, and setting the whole item to use the "blend" setting in TXMT will do this.

Have you checked to see if there are any separated versions of this item?

The shower is the Base Game shower. You pretty much confirmed what I was thinking. Looks like I will be searching for a separated version or maybe even take a stab at making one myself. Thanks for your response.