private void Form1_Load(object sender, EventArgs e){  this.tabControl1.DrawMode = System.Windows.Forms.TabDrawMode.OwnerDrawFixed;  this.tabControl1.DrawItem += new DrawItemEventHandler(this.tabControl1_DrawItem);}private void tabControl1_DrawItem(object sender, System.Windows.Forms.DrawItemEventArgs e){  StringFormat sf = new StringFormat();  sf.LineAlignment = StringAlignment.Center;  sf.Alignment = StringAlignment.Center;  if (e.Index == tabControl1.SelectedIndex)    e.Graphics.FillRectangle(Brushes.Red, e.Bounds.X, e.Bounds.Y, e.Bounds.Width, e.Bounds.Height);  else    e.Graphics.FillRectangle(Brushes.White, e.Bounds.X, e.Bounds.Y, e.Bounds.Width, e.Bounds.Height);  e.Graphics.DrawString(((TabControl)sender).TabPages[e.Index].Text,  System.Windows.Forms.SystemInformation.MenuFont, new SolidBrush(Color.Black), e.Bounds, sf);}

this.tabControl1.DrawMode = System.Windows.Forms.TabDrawMode.OwnerDrawFixed;this.tabControl1.DrawItem += new DrawItemEventHandler(this.tabControl1_DrawItem);

private void tabControl1_DrawItem(object sender, System.Windows.Forms.DrawItemEventArgs e){   Font fntTab;   Brush bshBack;   Brush bshFore;   if ( e.Index == this.tabControl1.SelectedIndex)   {     fntTab = new Font(e.Font, FontStyle.Bold);     bshBack = new System.Drawing.Drawing2D.LinearGradientBrush(e.Bounds, SystemColors.Control, SystemColors.Control, System.Drawing.Drawing2D.LinearGradientMode.BackwardDiagonal);     bshFore = Brushes.Black;   }   else   {     fntTab = e.Font;     bshBack = new SolidBrush(Color.Blue );     bshFore = new SolidBrush(Color.Black);   }   string tabName  = this.tabControl1.TabPages[e.Index].Text;   StringFormat sftTab = new StringFormat();   e.Graphics.FillRectangle(bshBack, e.Bounds);   Rectangle  recTab = e.Bounds;   recTab = new Rectangle( recTab.X,  recTab.Y + 4,  recTab.Width,  recTab.Height - 4);   e.Graphics.DrawString(tabName, fntTab, bshFore, recTab, sftTab);}