RetroShare/retroshare-gui/src/gui/qss/skin2.qss

/* Customize the toolbar. */
QToolBar {
    border-image: url(qss/skin2/background.png);

}


QPushButton#okButton {
	min-height: 27px;
      min-width: 77px;
}

QPushButton#cancelprefButton {
	  min-height: 27px;
      min-width: 77px;
}

QPushButton#cancelButton {
	  min-height: 25px;
	  max-height: 25px;
      min-width: 75px;
}


QPushButton#applyButton {

	  min-height: 25px;
	  max-height: 25px;
      min-width: 75px;
}
QFrame#messengerframetop{
         
    border-image: url(qss/skin2/background.png);
}