connect(instantPreviewCO, SIGNAL(activated(int)), this, SIGNAL(changed()));
connect(previewSizeSB, SIGNAL(valueChanged(double)), this, SIGNAL(changed()));
connect(paragraphMarkerCB, SIGNAL(toggled(bool)), this, SIGNAL(changed()));
connect(instantPreviewCO, SIGNAL(activated(int)), this, SIGNAL(changed()));
connect(previewSizeSB, SIGNAL(valueChanged(double)), this, SIGNAL(changed()));
connect(paragraphMarkerCB, SIGNAL(toggled(bool)), this, SIGNAL(changed()));