File plastik-default.diff of Package libqt4
--- src/gui/kernel/qapplication.cpp
+++ src/gui/kernel/qapplication.cpp
@@ -1143,7 +1143,7 @@ QStyle *QApplication::style()
#elif defined(Q_WS_X11) && defined(Q_OS_MAC)
style = QLatin1String("Plastique"); // default style for X11 on Darwin
#elif defined(Q_WS_X11)
- style = QLatin1String("Motif"); // default style for X11
+ style = QLatin1String("Plastique"); // default style for X11
#elif defined(Q_WS_MAC)
style = QLatin1String("Macintosh"); // default style for all Mac's
#elif defined(Q_WS_QWS)