Space issue between shapes

I have below code and output, I do see some extra space comes between shapes where I couldn’t find way to remove. Do you find anything wrong with my approach?

  myDiagram.nodeTemplate =
  $(go.Node, 'Auto',
          
    $(go.Shape,
      {
        fill: 'white',
        strokeWidth: 1,
        stroke: 'grey',
        figure: 'RoundedRectangle',
        portId: '', cursor: 'pointer',
        minSize: new go.Size(250, 72),           
      },
     ),
     $(go.Panel, "Table",
      {
        defaultAlignment: go.Spot.Left,
        alignment: go.Spot.Top,
      },
      $(go.RowColumnDefinition, { row: 11, height: 20 }),
      $(go.RowColumnDefinition, { column: 0, width: 90 }),
      $(go.RowColumnDefinition, { column: 1, width: 160, maximum: 160 }),
      $(go.Panel, "Auto",
        { row: 0, column: 0, margin: 0, height: 21, columnSpan: 2, stretch: go.GraphObject.Horizontal },
        $(go.Shape, "RoundedTopRectangle",
          // new go.Binding('stroke', 'status', function (s) { return resolveStatusColor(s); }),
          { fill: '#E8DFDD', stroke: '#E8DFDD', parameter1: 3 }
        ),
        $(go.Picture,

and so on

image

By default, the RoundedRectangle figure leaves a bit of space inside its corners. Since you are fitting a RoundedTopRectangle into it, try setting Shape.spot1 and Shape.spot2:

$(go.Node, 'Auto',
  $(go.Shape,
    {
      fill: 'white',
      strokeWidth: 1,
      stroke: 'grey',
      figure: 'RoundedRectangle',
      portId: '', cursor: 'pointer',
      minSize: new go.Size(250, 72),    
      spot1: go.Spot.TopLeft,
      spot2: go.Spot.BottomRight
    },
  ),
  ...
)