To gradient color of MDI Form

Public Class Form1

    Private WithEvents client As MdiClient

    Private Sub Form1_Load(ByVal sender As Object, _
                           ByVal e As EventArgs) Handles MyBase.Load
        Me.client = Me.Controls.OfType(Of MdiClient).First()
    End Sub

    Private Sub client_Paint(ByVal sender As Object, _
                             ByVal e As PaintEventArgs) Handles client.Paint
        Using Brush As New Drawing2D.LinearGradientBrush(Me.client.Bounds, _
                                                         Color.FromArgb(0, 58, 140), _
                                                         Color.FromArgb(0, 215, 255), _
                                                         Drawing2D.LinearGradientMode.Vertical)
            e.Graphics.FillRectangle(Brush, Me.client.Bounds)
        End Using
    End Sub

End Class