The main appeal of the paint horse? COLOR! White spots that form specific patterns mix with the horses base color coat and create a unique and beautiful horse (I have another Hub Article about color if you’re interested). On top of this, because the Paint Horse Association was founded using the blood of other American Australian Stock Horses (Quarter Horses and Throughbreds-also have an article about Foundation Quarter Horses) it is possible to find very well bred Australian Stock Horses with lots of color! The question remains, as not all paint horses carry two copies of their color gene, some ‘solid’ foals will be born. ‘Solid’ now referred to as ‘Solid Paint Bred’ and previously as ‘Breeding Stock’ means that the horses white markings do not qualify them for ‘regular registry’ papers but they still are given registration papers, just with some limitations as far as showing.