Visual Basic.NET - Imagen de fondo

Private Sub Form2_Load(sender As Object, e As EventArgs) Handles Me.Load

        Me.BackgroundImage = Image.FromFile("D:\Tmp\Media\Bois4.jpg")

    End Sub

Imports System.Threading

Public Class frmTela_MenuSend

    Private Sub btnExit_Click(sender As Object, e As EventArgs) Handles btnExit.Click

        Application.Exit()

    End Sub

    Private Sub Panel1_Paint(sender As Object, e As PaintEventArgs) Handles Panel2.Paint

        Dim Opacity As Int32 = 50                      ' valor em porcentagem

        'Me.Color = Color.White  '' ??? No comprendo porque ...

        '****'      Panel1.BackColor = Color.FromArgb(25, 100, 51, 62)

    End Sub

    Private Sub frmTela_MenuSend_Load(sender As Object, e As EventArgs) Handles Me.Load

        Me.Panel2.Dock = DockStyle.Fill

        Me.Panel2.BackgroundImage = Image.FromFile("D:\Tmp\FondEcranMelqui\christopher-gower-m_HRfLhgABo-unsplash.jpg")

        Me.Panel2.BackgroundImageLayout = ImageLayout.Stretch

        Panel1.BringToFront()

    End Sub

End Class