To change the color of Tab control Add this event handler DrawMode property to OwnerDrawFixed. Override the DrawItem event handler definition. tabControl2.DrawItem += new DrawItemEventHandler(OnDraw... step 2 private void OnDrawItem(object sender, DrawItemEventArgs e) { TabPage CurrentTab = tabControl2.TabPages[e.Index]; Rectangle ItemRect = tabControl2.GetTabRect(e.In... SolidBrush FillBrush = new SolidBrush(Color.Red); SolidBrush TextBrush = new SolidBrush(Color.White); StringFormat sf = new...