Form3.vb

Public Class Form3
    Public theme As Boolean = True
    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        Form4.Show()
        Me.Hide()
    End Sub
    Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
        Form1.Close()
        Form2.Close()
        Form4.Close()
        Me.Close()
    End Sub

    Private Sub Form3_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        Me.BackgroundImage = System.Drawing.Image.FromFile("pic\bg.jpg")
        Me.BackgroundImageLayout = ImageLayout.Stretch
    End Sub
End Class