To make TabControl or TabStrip control background (the area behind tabs) transparent you need to set following properties to Color.Transparent value:


TabControl.ColorScheme.TabBackground = Color.Transparent;
TabControl.ColorScheme.TabBackground2 = Color.Transparent;
TabControl.BackColor = Color.Transparent;


TabControl.ColorScheme.TabBackground = Color.Transparent
TabControl.ColorScheme.TabBackground2 = Color.Transparent
TabControl.BackColor = Color.Transparent

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