Ok, I've had my filly for about 7 months now and when we first got her we thought this brown spot on her was dirt but after giving her a bath we've realized its just her color. Its definatly not dirt. Ever since we've bought her its gotten a little bigger and darker and now I'm noticing another one appearing on her chest. I have never seen anything like this on a palomino and I was wondering if its common or not, or atleast what it is. I have some pictures if you want to see them.