Fusion is Qt5 only for now, so you won't find it by default. There is a port to Qt4 which works fine, you can get it here: https://code.google.com/p/fusion-qt4

Fusion is Qt5 only for now, so you won't find it by default. There is a port to Qt4 which works fine, you can get it here: https://code.google.com/p/fusion-qt4/ https://code.google.com/p/fusion-qt4/ (only source, so you have to compile it).