Dun is caused by "D" or "Dn" depending on how you want to write it. And your icelandic would most likely be Splashed White which is not an uncommon pattern in them.
THANK you so Much, It really mean ALOT!
But I guess you just dont simply put D or Dn, Do you add the normal gentics to that? I mean would a RED dun be represented with chestnut gentics and the dun gene, Like Aa ee Dn ? Or I'm complettly wrong now?
Oh, and yes, he is supoosed to be Splashed White. I made him when I found out there was a colour like that. But I was wondering will the splashed whithe "show up" in the genetic code and how should it be written? Or should I only write the gentics for black?
But I guess you just dont simply put D or Dn, Do you add the normal gentics to that? I mean would a RED dun be represented with chestnut gentics and the dun gene, Like Aa ee Dn ? Or I'm complettly wrong now?
Oh, and yes, he is supoosed to be Splashed White. I made him when I found out there was a colour like that. But I was wondering will the splashed whithe "show up" in the genetic code and how should it be written? Or should I only write the gentics for black?
If I understood you, in order to be a "Red Dun" as in Chestnut + Dun, then yes the horse would have to be "ee + D_" where _ means the second gene does not matter in the expression of Dun.
Okay, thank you very much! As for splash, is there any gene know for that like Sb for sabino marking? Or should I just ignore the splash part and give him his genetics for black.
Thank you very much, especially for coping with me and all my questions. 
I had totally missed that page!
I had totally missed that page!