I have created a "CollapsingPanel"class/sort of a JTabbedPane (code skeleton can be found at http://www.coderanch.com/t/341737/Swing-AWT-SWT-JFace/java/Expand-Collapse-Panels). It is in other words a lot of headers which you click on to show a hidden Panel. At the moment these header-panels are a rectangular box with a LineBorder around them. That is ugly!
I'm wondering if there is a way to copy the layout that the JTabbedPane uses for its headers/titles (which is inhierted from Look&Feel I assume) and use it on my JPanel-based headers? So that my headers get a smooth look which is in line with the rest of the program (based on Look&Feel!) instead of looking like alien flat blocks.
Illustrated below with the headers nicely circled in green. I want to apply the header-look from 2nd picture over the red header JPanel in picture 1:
