TMSFMXTableView Right Rectangle Customization II

FMX TMS FMX UI Pack
4

I'm trying to color the AItem.ShapePlaceHolder rectangle on the TableViewEx Item. I'm not begin successful.


procedure TfrmTrack.TrackViewItemCustomize(Sender: TObject;
                                           AItem: TTMSFMXTableViewItem;
                                           AItemShape: TTMSFMXTableViewItemShape;
                                           AItemControlShape: TControl);
var
  panel: TRectangle;
begin
  panel := AItem.ShapePlaceHolder;
  if Assigned(panel) then
  begin
    panel.Size.Width := 28;
    panel.Fill.Color := TAlphaColorRec.Red;// FData.GetStatusColor(AItem.Tag,scResults);
  end;
end;

Should I expect this to work?
Thanks.