I port mobile legends and lol models to gta sa.
chromas are in "Chromas" folder,
open cwfyfr1.txd with any txd tool (I suggest magic txd)
delete the former userboy17.dds image inside in the txd
rename the chroma you want to use as userboy17
(for example: if you want to use userboy17 (5).dds rename it as userboy17.dds)
import it inside the txd and save