How to customize group caption summary appearance in WinForms GridGroupingControl?

Customize the group caption summary

In order to show the total item and total count of the caption summary in the group caption row with appearance customization, it can be handled by the following codes.

GridSummaryColumnDescriptor scd = new GridSummaryColumnDescriptor("Sum", SummaryType.DoubleAggregate, "Freight", "Total : {Sum:#}");
GridSummaryColumnDescriptor scd1 = new GridSummaryColumnDescriptor("Count", SummaryType.DoubleAggregate, "EmployeeID", "{Count:#} : items");
GridSummaryRowDescriptor srd = new GridSummaryRowDescriptor("Sum");
srd.Appearance.AnyCell.HorizontalAlignment = GridHorizontalAlignment.Left;
srd.SummaryColumns.AddRange(new GridSummaryColumnDescriptor[] { scd, scd1 });
this.gridGroupingControl1.GetTableDescriptor("Orders").SummaryRows.Add(srd);
this.gridGroupingControl1.ChildGroupOptions.ShowCaptionSummaryCells = true;
this.gridGroupingControl1.ChildGroupOptions.ShowSummaries = false;
this.gridGroupingControl1.ChildGroupOptions.CaptionSummaryRow = "Sum";
this.gridGroupingControl1.TableDescriptor.GroupedColumns.Add("CustomerID");
this.gridGroupingControl1.ChildGroupOptions.CaptionText = "{CategoryCaption}: {Category}";
this.gridGroupingControl1.TableDescriptor.Appearance.GroupCaptionSummaryCell.BackColor = Color.FromArgb(240, 241, 242);
this.gridGroupingControl1.Appearance.GroupCaptionCell.CellType = "Static";
this.gridGroupingControl1.Appearance.GroupCaptionCell.Borders.Top = new GridBorder(GridBorderStyle.None);

Private scd As New GridSummaryColumnDescriptor("Sum", SummaryType.DoubleAggregate, "Freight", "Total : {Sum:#}")
Private scd1 As New GridSummaryColumnDescriptor("Count", SummaryType.DoubleAggregate, "EmployeeID", "{Count:#} : items")
Private srd As New GridSummaryRowDescriptor("Sum")
srd.Appearance.AnyCell.HorizontalAlignment = GridHorizontalAlignment.Left
srd.SummaryColumns.AddRange(New GridSummaryColumnDescriptor() { scd, scd1 })
Me.gridGroupingControl1.GetTableDescriptor("Orders").SummaryRows.Add(srd)
Me.gridGroupingControl1.ChildGroupOptions.ShowCaptionSummaryCells = True
Me.gridGroupingControl1.ChildGroupOptions.ShowSummaries = False
Me.gridGroupingControl1.ChildGroupOptions.CaptionSummaryRow = "Sum"
Me.gridGroupingControl1.TableDescriptor.GroupedColumns.Add("CustomerID")
Me.gridGroupingControl1.ChildGroupOptions.CaptionText = "{CategoryCaption}: {Category}"
Me.gridGroupingControl1.TableDescriptor.Appearance.GroupCaptionSummaryCell.BackColor = Color.FromArgb(240, 241, 242)
Me.gridGroupingControl1.Appearance.GroupCaptionCell.CellType = "Static"
Me.gridGroupingControl1.Appearance.GroupCaptionCell.Borders.Top = New GridBorder(GridBorderStyle.None)