updateTabWidgetDependency();
	public Control createContents(Composite parent) {				fMainPanel= new Composite(parent, SWT.NONE);		GridLayout layout= new GridLayout();		layout.numColumns= 1;		layout.marginWidth=0;		fMainPanel.setLayout(layout);		createOptimizedCategoryLayout(fMainPanel);		createPreview(fMainPanel);		return (Control)fMainPanel;	}