In this hack Mario and Luigi have own separated color palette.
Thanks to 4matsy for the basic coding and the full permission to produce the hack!
Name: Super Mario Bros. (World).nes
SHA-1: EA343F4E445A9050D4B4FBAC2C77D0693B1D0922
MD5: 811B027EAF99C2DEF7B933C5208636DE
CRC32: 3337EC46