For those who attended the BreyerFest horse color seminar, here are examples of mapping on pintos.
If you watched the seminar on developing an eye for details in horse color, at the end I mentioned I would post more images of mapping on the blog. Mapping, or haloing, around the edge of a pattern or marking can happen when the dark skin extends into the white areas of the coat. It can also happen with the hairs on the edge of the pattern are a mixture of white and color. Mapping can even be a combination of both, with some areas having one type and others having another - or even having both. Mapping can be irregular in shape and is not always consistently present across the entire coat. These are all things to look for, especially if you are an artist trying to add the detail when painting.
Normally blog posts here have a lot of words—I am a talkative person! But mapping is one of those things where good, close-up photos are more helpful than words. Each set of photos under a bold-faced title are the same horse. Also, although your browser will resize the images to fit your device, they have all been uploaded as high-resolution images. Right clicking will bring up the original size so you can see the details more clearly.
Black tobiano gelding
Bay tobiano gelding
Red dun frame overo belton
Bay roan frame overo with "outlined" mapping
Bay frame belton (shown at the top of the post)
Palomino frame overo-sabino
I will continue posting examples, including some appaloosas, over the course of the weekend.