Interesting Roaning Pattern

This has appeared on my dun/roan colt the past week or so. I thought it was interesting enough to share. I've never seen a classic roan do this before. It is more evident in person. I may try to get some better pics later but its been raining off and on for the past week so hard to get good pics. Its along his top line and hips. The hairs in the white patches are slightly shorter then the rest of the coat but he hasn't had any scraps or cuts. The rest of the coat is still roany like I would expect of a classic roan this time of year. Over all he's a fat little turd who needs to have his attitude corrected but the other horses let him get away with murder. :rofl