Tobiano is a spotted color pattern commonly seen in pinto horses, produced by a dominant gene. The tobiano gene produces white-haired, pink-skinned patches on a base coat color. The coloration is almo
A bay-and-white, or skewbald, tobiano-patterned horse
A black-and-white, or piebald, tobiano-patterned miniature horse
Shah Jahan on a piebald tobiano.
Overo refers to several genetically unrelated pinto coloration patterns of white-over-dark body markings in horses, and is a term used by the American Paint Horse Association to classify a set of pint
Tobiano
…a dominant gene, so any tobiano horse must have at least one parent who carries the tobiano gene. Other spotting patterns seen in pinto horses include frame overo, splashed white and sabino. In the United Kingdom, tobianos are frequently referred to as "coloured" or as "pied": piebald if black and white, skewbald…
Frame overos have sharply defined, irregular, horizontally oriented white patches. As here, they are often bald-faced and white patches seldom cross the topline, creating a "frame" of non-white coat.
A splash overo with some minor sabino traits
A Sabino, called "sabino overo" by some registries