I am trying to edit a file within a narc but I keep getting the error "Png has to be 8bpp indexed!". If I extract one of the existing files I can put it in just fine but if I open it in gimp or paint and make 0 changes and save it, it suddenly is invalid. Please help. I am going crazy this is the last frame I need for my sprite mod.
Also I have tried importing the png using tinke on 8bpps and exporting it, that didn't work.