if (textWidget != null && !textWidget.isDisposed()) textWidget.setBackground(null);
	public void unconfigure() {		if (fOutlinePresenter != null) {			fOutlinePresenter.uninstall();				fOutlinePresenter= null;		}		if (fStructurePresenter != null) {			fStructurePresenter.uninstall();			fStructurePresenter= null;		}		if (fHierarchyPresenter != null) {			fHierarchyPresenter.uninstall();			fHierarchyPresenter= null;		}				StyledText textWidget= getTextWidget();		if (fForegroundColor != null) {			if (textWidget != null && !textWidget.isDisposed())				textWidget.setForeground(null);			fForegroundColor.dispose();			fForegroundColor= null;		}		if (fBackgroundColor != null) {			if (textWidget != null && !textWidget.isDisposed())				textWidget.setBackground(null);			fBackgroundColor.dispose();			fBackgroundColor= null;		}				if (fPreferenceStore != null)			fPreferenceStore.removePropertyChangeListener(this);				super.unconfigure();				fIsConfigured= false;	}