Theme.STYLES_SLOT ).iterator( );
IThemeModel.STYLES_SLOT ).iterator( );
	private void updateStyles( ElementRefValue theme )	{		// if the old theme is empty of not resolved. Do not need to unresolv.		if ( theme == null )			return;		if ( !theme.isResolved( ) )			return;		Iterator iter = ( (Theme) theme.getElement( ) ).getSlot(				Theme.STYLES_SLOT ).iterator( );		while ( iter.hasNext( ) )		{			DesignElement element = (DesignElement) iter.next( );			assert element instanceof StyleElement;			ReferenceableElement referenceableElement = (ReferenceableElement) element;			referenceableElement.updateClientReferences( );		}	}