There's actually no such thing as a white horse... they're all classified as shades of gray (which can fade to white with age), or as "cremello." The only horses born white have LWO and die within 72 hours because it is an extreme genetic mutation.
Typically with zorses (horse x zebra) you'll get the dominant coat pattern gene of the horse (whether it be solid like chestnut or bay, or mixed such as pinto or sabino), with the zebra stripe pattern interspersed within it.
So it would depend on the genetics. Gray horses do not always throw gray foals... they can just as easily throw a bay or pinto.
when i was younger, like 7, there was a movie called racing stripes. now in the SPECIAL alternate ending, the zebra was zebra lookin in the front and looked like white horse in the back. idk if dat was reel, but thats what it looked like.
A zebroid (also zedonk, zorse, zebra mule, zonkey, and zebrule) is the offspring of any cross between a zebra and any other equine: essentially, a zebra hybrid. In most cases, the sire is a zebra stallion. Offspring of a donkey sire and zebra dam, called a zebra hinny, or donkra, do exist but are rare. Zebroids have been bred since the 19th century. Charles Darwin noted several zebra hybrids in his works.Zebroids physically resemble their nonzebra parent, but are striped like a zebra. The stripes generally do not cover the whole body, and might be confined to the legs or spread onto parts of the body or neck. If the nonzebra parent was patterned (such as a roan, Appaloosa, Pinto horse/paint, piebald, or skewbald), this pattern might be passed down to the zebroid, in which case the stripes are usually confined to nonwhite areas.