Sealed Microsoft.UI.Xaml.Controls.Primitives.RepeatButton

[Alvaro Rivoir (arivoir)]

Unlike Button, RepeatButton is sealed, which forbids inheriting to extend its features. In WPF this same control is not sealed.

Why? Could the sealed modifier be removed?

[Marcel W. (marcelwgn)]

Unsealing all controls is planned for WinUI 3.X. See #780 for more context.