Originally Posted by crimsonsky
so a varnish is similar in a way to a grey? As in... they change color over time but leave more of the base color? Sorry if these are silly questions. :/
Sort of similar, but with some differences. Grey normally works with a front to rear trend, while Appy "roaning" (I prefer the term coloring out to avoid confusion with a regular roan) normally works with a rear to front trend. Appy coloring out normally leaves behind "varnish" marks on the hip and shoulder points and the flanks, thus the term varnish roan, and coloring out in an Appy can be present at birth, or not start till they are as old as 5 or 6, can progress at different speeds, and can virtually stop anywhere in the coloring out process.
Sinister, conventional roans are not necessarily born solid - most are not. Appy varnish roans may or may not be born solid, but as with greys there are almost always subtle indicators on "solid" foals that they are actually varnish roans. Of course unless one or both parents are homozygous, there is always a chance a foal may be a true solid...