Kate Draven wrote: this is qt4 or qt5 - in this case you need to install the dependencies and I don't think you should mess with kwin anyway. perhaps qt5 is better choice, but qt4 is coexisting in debian stretch with trinity and I think there were some integration efforts from TDE team. However qt5 is replacing qt4, so for the future it is the path to follow. best would be to port it to qt3 (if possible) regards ---------------------------------------------------------------------