Added a screenshot of QxtPushButton.
Added a screenshot of QxtPushButton.

hrobeers/qxtweb-qt5,mmitkevich/libqxt,mmitkevich/libqxt,mmitkevich/libqxt,hrobeers/qxtweb-qt5,hrobeers/qxtweb-qt5,mmitkevich/libqxt,hrobeers/qxtweb-qt5,hrobeers/qxtweb-qt5