How does the Marking Randomiser work?

Hello, everyone.  Since buying my Chincoteague stallion, I've decided that I don't like his SpSp genetics--partially because I think he has too much white, partially because it means that all of his foals will have splash patterning.  (I would prefer to have some more diverse patterns.)  If I use a Marking Randomiser on him, is it possible that his splash genes would change?  I'm not clear on which genetics the Marking Randomiser can change.  The stallion is https://www.equiverse.com/horse.php?id=626071.  Thanks for any help!  :)

I'm fairly certain Marking Randomizers modify the white genes, so Splash could be affected along with Kit genes(Roan, Tobanio, Sabino, White), Rabicano, Overo, and the Leopard Markings and Pattern genes. 

For Chincos specifically it could affect everything but the Leopard genes since Chincos don't have leopard genes!

Cool, thanks!  :)

Yay!  I used the Marking Randomiser on him, and now he's overo, which is my favorite pattern.  :)