Original Diagram not similar to Downloaded SVG in Case of Color

I am using Group node in Gojs Diagram using panel table in the Format of Row And Column,
but in that case blue Color of node is not visible in Downloaded SVG as below.

Original Diagram:

SVG Downloaded Diagram :

GroupNode Code:
var groupTemplate =
$(go.Group, “Auto”,
{
layout: $(go.LayeredDigraphLayout,
{
direction: 90,
layerSpacing: 120,
columnSpacing: 40,
linkSpacing: 4,
setsPortSpots: false,
packOption: go.LayeredDigraphLayout.PackMedian, //change For Bug

        }),
      isSubGraphExpanded: false,
      fromSpot: go.Spot.BottomSide,
      toSpot: go.Spot.TopSide,

    },
    $(go.Shape, "RoundedRectangle",
      {
        fromSpot: go.Spot.BottomSide,
        toSpot: go.Spot.TopSide,
        stretch: go.GraphObject.Fill,
        //alignment: go.Spot.Left,
        alignment: go.Spot.Center,
        fill: null
      },
      new go.Binding("stroke", "isHighlighted", h => h ? "#0047AB" : "#5A5A5A").ofObject(),
      new go.Binding("strokeWidth", "isHighlighted", h => h ? 4.8 : 1.2).ofObject()
    ),
    $(go.Panel, "Table",
      {row: 0, margin: 0.5 },  // avoid overlapping border with table contents
      $(go.RowColumnDefinition, {
        row: 0,
         background: "#3366ff",

      }
      ),

      $(go.RowColumnDefinition,  
        {
          row: 1,
          isRow: true,
          minimum: 50,
        }
      ),
      //// header is white
      $("SubGraphExpanderButton", {
        row: 0, column: 0, margin: 3,
      }),
      $(go.TextBlock,  // title is centered in header
        {

          row: 0, column: 1, font: "bold 14px Sans-Serif",
          textAlign: "right", stretch: go.GraphObject.Horizontal,
          editable: true,
          name: 'myTextBlock',

        },
        new go.Binding("text", "text"),
        new go.Binding("text","name"),
      ),

      $(go.Placeholder,  // becomes zero-sized when Group.isSubGraphExpanded is false
        {

          row: 1, columnSpan: 2, padding: 100,
          minSize: new go.Size(300, NaN),
          stretch: go.GraphObject.Horizontal,
        },
        new go.Binding("padding", "isSubGraphExpanded",
          exp => exp ? 100 : 0).ofObject())
      //new go.Binding("visible", "isSubGraphExpanded").ofObject()
    ),
    {
      selectionAdornmentTemplate:
        $(go.Adornment, "Auto",
          $(go.Shape, "RoundedRectangle",
            {
              fill: null,
              stroke: "#0047AB",
              strokeWidth: 6
            }),
          $(go.Placeholder)
        )  // end Adornment
    }
  );

Are you using the latest version of GoJS, 2.3.10?

I am using Gojs Version v2.3.8.

And what happens with v2.3.10?

I am not using v2.3.10, is these version required For Above issue.

Yes, I suggested using that version because it might fix that bug.

HI
After Installing Gojs Version 2.3.10, I am Facing Dependency issue in angular , Which Angular Core version required For Gojs Version 2.3.10.

There have been no dependency changes on the GoJS library between GoJS v2.3.8 and v2.3.10.

And there has never been any dependency of the GoJS library on any other library.

Did you update the version of any software other than the GoJS library? If so, I suggest you undo that.