Created attachment 95709 [details] Three QPushButtons (try to guess which are checked) For QPushButton that are used as toggle-buttons (with QPushButton::setCheckable(true); ) it is nearly impossible to determine if they are checked or not.
This is fixed in 5.5 See: http://wstaw.org/m/2015/11/24/plasma-desktopuX3305.png
But thanks for reporting ! (always useful)