As a note, typically when people use the term chrome, they're using it to describe a horse with flashy markings. You will usually hear someone say "has lots of chrome!" to describe a horse with high white legs and a big flashy blaze.
For example, people would say this horse has "lots of chrome":
Whereas this one would just be described as "one white foot and star/stripe":
You won't usually hear someone say "has a little bit of chrome!" LOL
Yep, chrome would be white markings; I've usually associated "chrome" with a more solidly colored horse, rather than a paint, given that the paint, or pinto already has a term for all of his white...hahaha.
I like chrome, although it was definitely a 'bonus' with my mare! I don't look for color, as much as I do what I am looking for in a horse (sound mind, usuable, etc...) markings are always a bonus factor for me!