Hi mike, that’s how they were in the colour pictures I used as reference. Ive seen them depicted as both, although yellow looked to be way more common in the searches I did. I don’t know if there’s an ‘in universe’ reason.
tiger shark comes with a transparent water effect ( the whole model is actually see through plastic, with the tiger shark painted over.)
one of the really cool things about Heroclix is what they can achieve with see through plastic, there are loads of supers with invisibility powers, flaming trails, Rays from eyes or hands, possessing spirits coming out of them etc that they keave as ‘see through’.