protected override void OnRenderToolStripBackground(ToolStripRenderEventArgs e)
{
var r = e.AffectedBounds;
var b = new LinearGradientBrush(r, Color.LightSteelBlue, Color.White,
LinearGradientMode.Vertical);
try
{
Point bl = new Point( e.AffectedBounds.X, e.AffectedBounds.Height-1 );
Point br = new Point( e.AffectedBounds.X+e.AffectedBounds.Width, e.AffectedBounds.Height-1 );
e.Graphics.FillRectangle(b, e.AffectedBounds);
e.Graphics.DrawLine(Pens.DarkGray, bl, br );
}
finally
{
b.Dispose();
}
}