Testing right now!
Is there a reason why the p0data2.bin is only about 900MB compared to the Moguri Mod p0data2.bin with 2GB?
I‘m not into modding... just wondering
Yes, that's linked to the way the transparency of the images is handled. I used DXT1 instead of DXT5, because the game only uses 1 bit of alpha (so it means transparency is either 0 or 1, not in between). Thus, the size is smaller and the final result has less artifact. I tested all possible options, this is the best one.