VB.net Paint a Taskpane

Hi. I am trying to paint my TaskPane control. What is the best way to do this? In the code below I tried filling a Panel but how would I change the code to paint the actual TaskBar

    Private Sub TaskPaneControl_Paint(sender As Object, e As System.Windows.Forms.PaintEventArgs) Handles Me.Paint
        Dim graphics As Graphics = Panel1.CreateGraphics()
        Dim rectBrush As New Rectangle(0, 0, 400, 200)
        Dim brush As LinearGradientBrush
        brush = New LinearGradientBrush(rectBrush, Color.FromArgb(46, 100, 160), _
                        Color.White, LinearGradientMode.Horizontal)
        graphics.FillRectangle(brush, rectBrush)
        graphics.Dispose()
    End Sub