 alignment: go.Spot.Bottom,
          height: 0,
          stretch: go.Stretch.Horizontal,
          stroke: null,
          strokeWidth: 8
        })
      );

    myDiagram.linkTemplate = new go.Link({
      selectable: false,
      deletable: false,
      routing: go.Routing.AvoidsNodes,
      corner: 5,
      toShortLength: 2,
      // links cannot be deleted
      // If a node from the Palette is dragged over this node, its outline will turn green
      mouseDragEnter: (e, link) => {
        if (!isLoo