Western. If she isregistered Paint she is paint. Some Paints can be double registered as AQHA. Paints can also be TB . Pinto is a color breed and can be any breed of horse. Paints must have a registered Paint parent and another parent in a recognized and listed/dna' horse.
Look up the guidelines in each breed. APHA or AQHA. There was a discussion on this subject,a while back. Let the comments begin..lol