I'm trying to modify the margin that exists above the tabs in a [TabView](https://learn.microsoft.com/en-us/windows/uwp/design/controls-and-patterns/tab-view) control, see the little red arrow here:

[![enter image description here](https://i.stack.imgur.com/qhSad.png)](https://i.stack.imgur.com/qhSad.png)

I think this margin is set [here](https://github.com/microsoft/microsoft-ui-xaml/blob/347c4bd18f2fc6832f100050f18f95a661c1c8fc/dev/TabView/TabView.xaml#L297) (its the matching amount of offset), but my attempts to modify this value via setters haven't been successful. How do I change it?

Edit: [Looks like](https://github.com/microsoft/microsoft-ui-xaml/issues/3736) the method to modify this may change.