The mouseover issues have now been resolved.

The menu backgrounds not skinning is due to the app not using real menus.  Fixing that is up to the QT authors as there is nothing WB can do.

Additionally all contols appear to use the system wide colours for text rather than using the theme part colours as they are supposed to.  This appears to be due to an error in the QT framework.  They are not alone in having this error as the MS .net framework and the firefox/thunderbird frameworks suffer the same problem.