I'm currently trying to use the new Acrylic Brushes from this API (https://learn.microsoft.com/en-us/uwp/api/windows.ui.xaml.media.acrylicbrush). I have the latest SDK (both regular and the insider sdk) installed and in my application the minimum and target are both set to build 16190. When I try to use:
<Grid x:Name="rootGrid" Background="{ThemeResource SystemControlAcrylicMediumHighWindowBrush}"></Grid>
I get the error that it can't find the resource SystemControlAcrylicMediumHighWindowBrush
My OS build is insider 16215.
Am I missing anything else to make this work?