How to customize the MainMenu ToolBar in the WinForms MainFrameBarManager?

//Draws the background of the MainMenu ToolBar.
this.mainFrameBarManager1.MainMenuBar.DrawBackground += new PaintEventHandler(MainMenuBar_DrawBackground);
void MainMenuBar_DrawBackground(object sender, PaintEventArgs e)
{
    //Gets the MainframeBarManager items bound.
    Rectangle rect = e.ClipRectangle;
    //Fills the rectangle.
    e.Graphics.FillRectangle(Brushes.Pink, rect); 
}

'Draws the background of the MainMenu ToolBar.
AddHandler mainFrameBarManager1.MainMenuBar.DrawBackground, AddressOf MainMenuBar_DrawBackground
Private Sub MainMenuBar_DrawBackground(ByVal sender As Object, ByVal e As PaintEventArgs)
 'Gets the MainframeBarManager items bound.
 Dim rect As Rectangle = e.ClipRectangle
 'Fills the rectangle.
 e.Graphics.FillRectangle(Brushes.Pink, rect)
End Sub