* Key issue condioton
1 DisplayMode.DarkMode
2 RoundedPanels = true
3 EnableDoubleBuffering(tableLayoutPanel2)
4 tableLayoutPanel2.CellBorderStyle = TableLayoutPanelCellBorderStyle.None
5 btnWithPadding0.Dock = DockStyle.Fill,
6 Margin = new Padding(0)
.NET 8.0