I don't really see any dun characteristics in her yearling pics. It's not unusual for a foal to have a dorsal stripe at birth, even with no dun or cream genetics. Camo thing? They loose it as they grow. Most of the Gotland foals I've met were born with dorsal stripes. Even though dun is not seen in the breed (though mistakenly recorded) Cream is more common, but the parents in these cases did not have it (3 bay/ brown stallions and 2 chestnut mares)