B4J Question XUI Views - LongTextTemplate gaps in background

Sub Process_Globals
   Private fx As JFX
   Private MainForm As Form
   Private Dialog As B4XDialog
   Private LongText As B4XLongTextTemplate
   Private xui As XUI
End Sub

Sub AppStart (Form1 As Form, Args() As String)
   MainForm = Form1
   MainForm.Show
   Dialog.Initialize(MainForm.RootPane)
   Dialog.Title = "B4XDialog Example"
   LongText.Initialize
   LongText.CustomListView1.DefaultTextBackgroundColor = xui.Color_White
   LongText.CustomListView1.DefaultTextColor = xui.Color_Black
   LongText.Text = $"js dlkf jskldfj slkdf
sdf kjlsdfj lk jwelrkfj welkfj wlekfj wlkef
wef jlkwe jflkw ejflkwej flkwe jflkwe jflwkef j
we jflkwe jflwek jflkw efjlkwe f

"$
End Sub

Sub MainForm_Resize (Width As Double, Height As Double)
   If Dialog.Visible Then Dialog.Resize(Width, Height)
End Sub

Private Sub MainForm_MouseClicked (EventData As MouseEvent)
   Dialog.ShowTemplate(LongText, "OK", "", "")
End Sub