Overo

Overo

On an Overo colored horse, the white will not usually cross the back of the horse between the withers and tail. It is desirable for all four legs to be dark, or at least one. Face markings are usually bald-faced, apron-faced or bonnet-faced. The white color throughout the overo's body is generally irregular or sometimes 'jagged' instead of forming smooth lines between the colors.
Sabino Overo: Appears speckled or "roany", mostly near the spot's edges. This is the most common overo pattern. Sabinos often have spotted or roan-like facial markings, which can look quite wild. It is rare to find a sabino with a normal star or stripe for a facial marking. Another distinct characteristic of the sabino, is that they generally have three or four white legs.
Frame Overo: White spots along the horse's barrel, with a "frame" of darker color around the white. Over 95% of all frame overos are solid colored along the back from the withers to the tail, and it is uncommon for the mane to be of mixed color.
Splash White Overo: This is a very rare overo color pattern. In my opinion, splash white overos look like a reverse-colored Tobiano...with smooth-edged color patterns, and with a white "shield" in the front covering the shoulders and bottom of the neck being a common trait. Splash whites generally have light-to-medium blue eyes. It is also common for splash whites to have 4 white legs.