e: 'black', strokeWidth: 1}),
            new go.Panel('Auto')
              .add(
                new go.Shape({fill: '#eee', margin: 4, stroke: 'black', strokeWidth: 1}),
                makeFlowPanel('Rectangles', ['Square', 'RoundedRectangle', 'Diamond', 'RoundedTopRectangle', 'RoundedBottomRectangle'], true),
                makeFlowPanel('Triangles', ['TriangleUp', 'TriangleRight', 'TriangleDown', 'TriangleLeft', 'TriangleDownLeft', 'TriangleDownRight', 'TriangleUpLeft', 'TriangleUpRight']),
         