promblem with sprite import on nse 2

i'm trying to import a custom sprite i made into a rom hack which i managed to do the only problem is the characters picture looks like it's been filled in with negative colors, does anyone know how to fix this

The place to ask is in https://www.pokecommunity.com/forumdisplay.php?fn=rom-hacking-center

This section where you posted now is for questions about the forums and community itself.

You can also try asking in the #rom-hacking channel over at our Discord server https://discord.gg/PdxeXfq

thanks