ScrollPane Component

I’ve looked around and didn’t see anything about this so I thought I’d ask.
Anyone know how to manipulate the style of the scrollpane component?
Does this involve Action script or can it be adjusted on the stage (color of bar, track, etc.)?
The parameters don’t seem to do a whole lot other than the basics and a Google search doesn’t give a whole lot of information either.

any help would be mucho-appreciato.