Customizing an errorbar plot


I am hoping someone more familiar with matplotlib can tell me if it is
possible to customize an errorbar plot such that each marker has a
different colour. That is, I'd like to set the markerfacecolor
property of each marker in the errorbar plot. Is this possible? I've
been trying to figure out what the returned objects from errorbar are,
but haven't had any luck finding this documented anywhere.

Thanks for any and all help.