Greetings everyone,
That question might not make sense at first glance so here's the more elaborate question:
I have a map file made from a tile set that I want to simplify the tiles down to just a single color. There's a lot of them, and it's a big image. I started by just copy pasting but it's going to take way too long. So I was curious if Paint.net has a built in method to replace sets of pixels with another, or if there is a plugin than can do it.
Here's a visual representation of what I mean using a small piece of the map:
