WinForms TabControl set ShowFocusCues to false?

Hello,

I have difficulties hiding the focus cues around the tab page items of TabControl.

Here seems possible:

https://learn.microsoft.com/en-us/dotnet/api/system.windows.forms.tabcontrol?view=netframework-4.8

But my code won't work, anyone can help please? :)

Friend Class _TabControl
    Inherits Windows.Forms.TabControl
    Public Sub New()
        MyBase.New()
        Font = New Font("Segoe UI", 9)
    End Sub
    Protected Overrides ReadOnly Property ShowFocusCues As Boolean
        Get
            Return False
        End Get
    End Property
End Class