This should definitely be a method, at least in my book. e.g. `overlay_scrollbars?` or something like that. And then it should also use the original SWT constant, the 2 there is just a magic number. E.g it should use [SCROLLABLE_OVERLAY](http://help.eclipse.org/juno/index.jsp?topic=%2Forg.eclipse.platform.doc.isv%2Freference%2Fapi%2Forg%2Feclipse%2Fswt%2Fwidgets%2FScrollable.html) - also the value seems to be 1, not 2.

Should be accessible via `::Swt::SCROLLABLE_OVERLAY`or `::SWT::SCROLLABLE_OVERLAY`not 100% sure right now... or wait is it `::Swt::SWT::SCROLLABLE_OVERLAY` ? Yep should be the last one. Always confusing.