In the development of the Rpgmaker 2000 / 2003 tileset editor,
I implemented a colour-quantization algorithm that can transform an XP, MV or MZ tileset into a style very similar to the classic, old Rpgmaker style. 

Thanks to a complex colour quantization algorithm, I was able to achieve this effect.
I hope it will appeal to all those who still love retro games.

This feature will be available very soon in the next version.