I think the colour might be called beige, not sure though, but I think beiges have ruby eyes. A lot of people don't like red eyes, but I do
And yep, they're called dutch markings in piggies too
They really have no jumping ability and don't generally use ramps/shelves unless they are forced too. Sometimes people will add a ramp to the cage I posted leading up to a second level, but the ramp needs to be quite flat and not step at all. They would likely chew on the plastic as they chew on coroplast sides too.