multi-column-list-panel header graphic

All,

I have created a CAPI interface on LWW that uses a
multi-column-list-panel. I've created a callback for my headers so
that when they are clicked, the list is sorted. It's good - I like
it.

However, I would like an easy way to add a triangle graphic or some
indicator that a column is sorted in a particular order. The Ystok
grid component does this, but it appears that the whole grid is custom
drawn using GP. I would like to be able to just add a little triangle
to the right of my header title.

Has anyone done this before or are there any suggestions for an easy
way to do this?

Thanks!
Tom