Public Sub SetStyle(Id As Long)
    ID_THEME_CURRENT = Id
    
    Dim ControlFile As CommandBarPopup
    Set ControlFile = RibbonBar.SystemButton

    Select Case Id
    .....
       Case ID_OPTIONS_STYLEOFFICE2013:
            SetCommandbarsTheme xtpThemeOffice2013, App.Path & "\..\..\..\Styles\Office2013.dll", "Office2013White.ini"
            ControlFile.Style = xtpButtonCaption
            ' CreateBackstageView   'Deleted. This call is in SetCommandbarsTheme  -> UpdateBackstageTheme

            CommandBars.PaintManager.RefreshMetrics
            CommandBars.RecalcLayout
            picClient.Refresh
    .....
End Sub

Public Sub SetCommandbarsTheme(paintTheme As XtremeCommandBars.XTPVisualTheme, hModule As String, lpszINI As String)
    .....
    .....
    If Not hModule = App.Path & "\..\..\..\Styles\Office2007.dll" Then
        UpdateBackstageTheme
    End If
    .....
End Sub

Public Sub UpdateBackstageTheme()
    Dim nTheme As XtremeCommandBars.XTPBackstageButtonControlAppearanceStyle
    Dim RibbonBar As RibbonBar
    Dim BackstageView As RibbonBackstageView

    Set RibbonBar = CommandBars.ActiveMenuBar
    
    If Not TypeOf RibbonBar.SystemButton.CommandBar Is RibbonBackstageView Then
        CreateBackstageView
    End If
    
    Set BackstageView = RibbonBar.SystemButton.CommandBar
        
    Select Case CommandBars.VisualTheme
        Case xtpThemeOffice2013
            nTheme = xtpAppearanceOffice2013
            BackstageView.SetTheme xtpThemeOffice2013
        Case xtpThemeVisualStudio2015
            nTheme = xtpAppearanceVisualStudio2015
            BackstageView.SetTheme xtpThemeVisualStudio2015
        Case Else
            nTheme = xtpAppearanceResource
            BackstageView.SetTheme xtpThemeRibbon
    End Select
    
    If Not (pageBackstageInfo Is Nothing) Then
        pageBackstageInfo.SetAppearance nTheme, CommandBars
        pageBackstageInfo.SetColorsFromBackstageView BackstageView
    End If
    If Not (pageBackstageHelp Is Nothing) Then
        pageBackstageHelp.SetAppearance nTheme, CommandBars
        pageBackstageHelp.SetColorsFromBackstageView BackstageView
    End If
    If Not (pageBackstageSend Is Nothing) Then
        pageBackstageSend.SetAppearance nTheme, CommandBars
        pageBackstageSend.SetColorsFromBackstageView BackstageView
    End If
    If Not (pageBackstageRecent Is Nothing) Then
        pageBackstageRecent.SetAppearance nTheme
        pageBackstageRecent.SetColorsFromBackstageView BackstageView
    End If
    If Not (pageBackstagePrint Is Nothing) Then
        pageBackstagePrint.SetAppearance nTheme, CommandBars
        pageBackstagePrint.SetColorsFromBackstageView BackstageView
    End If
End Sub

Sub CreateBackstageView()
    Dim RibbonBar As RibbonBar
    Set RibbonBar = CommandBars.ActiveMenuBar
    
    Dim BackstageView As RibbonBackstageView
    Set BackstageView = CommandBars.CreateCommandBar("CXTPRibbonBackstageView")
    
    Set RibbonBar.AddSystemButton.CommandBar = BackstageView
    
    BackstageView.AddCommand ID_FILE_SAVE, "Save"
    BackstageView.AddCommand ID_FILE_SAVE_AS, "Save As"
    BackstageView.AddCommand ID_FILE_OPEN, "Open"
    BackstageView.AddCommand ID_FILE_CLOSE, "Close"
    
    If (pageBackstageInfo Is Nothing) Then Set pageBackstageInfo = New pageBackstageInfo
    If (pageBackstageSend Is Nothing) Then Set pageBackstageSend = New pageBackstageSend
    If (pageBackstageRecent Is Nothing) Then
        Set pageBackstageRecent = New pageBackstageRecent
        Set pageBackstageRecent.RecentFileList = CommandBars.RecentFileList
    End If
    
    If (pageBackstageHelp Is Nothing) Then Set pageBackstageHelp = New pageBackstageHelp
    If (pageBackstagePrint Is Nothing) Then Set pageBackstagePrint = New pageBackstagePrint
    
    Dim ControlInfo As RibbonBackstageTab
    Set ControlInfo = BackstageView.AddTab(1000, "Info", pageBackstageInfo.hwnd)
    
    BackstageView.AddTab ID_BACKSTAGETAB_RECENT, "Recent", pageBackstageRecent.hwnd
    
    BackstageView.AddTab ID_BACKSTAGETAB_PRINT, "Print", pageBackstagePrint.hwnd
    
    BackstageView.AddTab 1002, "Save && Send", pageBackstageSend.hwnd
    BackstageView.AddTab 1001, "Help", pageBackstageHelp.hwnd
    
    BackstageView.AddCommand ID_FILE_OPTIONS, "Options"
    BackstageView.AddCommand ID_APP_EXIT, "Exit"
    
    ControlInfo.DefaultItem = True
    
    CommandBars.Icons.LoadBitmap App.Path & "\res\BackstageIcons.png", _
        Array(ID_FILE_SAVE, ID_FILE_SAVE_AS, ID_FILE_OPEN, ID_FILE_CLOSE, ID_FILE_OPTIONS, ID_APP_EXIT), xtpImageNormal

End Sub

Private Sub CreateRibbonBar()
    ....
    UpdateBackstageTheme  'instead of CreateBackstageView
    ....
End Sub