How to edit a sprite?

[Pink Guy]

I was thinking of recoloring a sprite and editing the GF wanted hat and change it to "I am pro".. so how can I edit it and make a separate sprite from the original?

[Aerie]

You can refer to the wiki for edit the item : http://rathena.org/wiki/Spriting

Then for no replace the original you have to create a new one with another name, check adding items part in the wiki.