Sabino are white markings that start rom the legs/belly and often have very jagged/scattered edges and patterns. It will always be denser near the belly and legs, fading out a bit as it gets closer to the topline.
Gustia plume is part of the Sabino gene, where the tail hairs turn white.
Genetic Marker: Sbsb or SbSb
Geno Examples:
ee/Aa/Sbsb(chestnut Sabino)
**Note: Roan, Dominant White, Tobiano, and Sabino all exist on the same Marker location. So if you have a Roan Tobiano it would show as RnTo. You can not have more than 2 Genes in one location, so you will never get a Dominant white Roan Tobiano.