So a quick Frozen recap and because I haven't seen it I asked IMdb:
Fearless optimist Anna teams up with Kristoff in an epic journey, encountering Everest-like conditions, and a hilarious snowman named Olaf in a race to find Anna's sister Elsa, whose icy powers have trapped the kingdom in eternal winter.
The movie depicts a horse with a decorative mane. I didn't notice the horse at all however I've seen a few pages where images were posted of the actual horse after which Pixar patterned Anna's.
|I got this picture here|
|I got this photo of a well dressed Fjord here|
|Look at that face!!!|
Unless otherwise cited, photos come from here
This beautiful horse is called a Norwegian Fjord. It has a two toned mane with a dark stripe in the centre between two blonde stripes. As someone said here, sort of like a two toned Mohawk and who wouldn't want that in a horse? Or any four legged family member?
Of course they don't go around their daily routine all decked out. Here is the natural look, although Pixar's horse's mane is still trimmed:
|Natural N-fjord mane|
Check out this page for more images of Norwegian Fjord's of all ages.
When grooming the mane, artistic Norwegian horse owners will snip patterns into the mane because: why not? Horse.
Also, from the comments, check out this farm where I plan to visit the next time I'm in Idaho!
Here is the Wiki page describing Norwegian Fjords. They're small, strong, good natured, hard working and pretty much all the same colour in five varying shades of dun. So kinda nice they got that black stripe in the mane.