Hi I'm having a 24-bit picture and want to convert it in a format containing only a predefined set of colors. For example, the colors would be exclusively white, black, red, fushia and yellow.
My goal is to be able to make sprites and copy them pixel-by-pixel within some videogames such as Mario Paint, Mario Kart DS (for the decal) or Animal Crossing. Can I do such a job with Paint.NET? If not, is there any suggestion?