It's essentially been concluded that blue eyes are a result of splashed white or frame overo. So how do we explain WA Outrageous? She is registered purebred Arabian, and as we know, sabino is the only pinto gene found in Arabs thus far. As far as I know, we have NO other record of blue eyed Arabs.
Her sire is Khartoon Khlassic:
And her dam is Gladiola Bey:
That's the only pic I can find of her dam.
She has tons of full siblings, all with loud markings that could realistically pass for sabino OR splash, and sometimes even frame. No blue eyes though. Her full siblings: