private static List<GraphItem> createTestItems(){
		List<GraphItem> result = new ArrayList<>();
		
		for( int x = 0; x < 4; x++ ){
			for( int y = 0; y < 4; y++ ){
				ColoredRectangle rect = new ColoredRectangle( Color.GRAY );
				FluentRectangularConnectionArray array = new FluentRectangularConnectionArray();
				rect.setBoundaries( 200+x*200, 200+y*200, 50, 50 );
				rect.addChild( array );
				rect.setCapability( CapabilityName.CONNECTABLE, connect( array ) );
				result.add( rect );
			}
		}
		
		return result;
	}