>>33431269You can't just replace pokecrystal's files with the ones from Polished Crystal. They're completely different, your maps would look wrong. Convert them to PNG and copy the modified tiles you want.
Pic related, it's the house tileset. Even if you copied all the related files (gfx/tilesets/house1.2bpp.lz, tilesets/house1_metatiles.bin, tilesets/house1_palette_map.asm, tilesets/house1_collision.asm—which would need to be converted back to a .bin file), updated tilesets/animations.asm if necessary for things like waterfall or flower tiles, and used this tutorial <
https://hax.iimarckus.org/topic/7167/>; to work with the >192-tile sets, you'd still need to update all your maps because many of the metatile IDs are different.
