[MonoGame] How to make background transparent?

Aloento

I have a UWP App and I use SwapChainPanel to insert MonoGame.
in Render():

_game.GraphicsDevice.Clear(Color.Transparent);

But it didn't work.

<Grid Background="White">
    <SwapChainPanel x:Name="swapChainPanel">
    </SwapChainPanel>
</Grid>

Could you help me to figure out it?

Harald

I'm afraid our expertise does not cover behaviour of SwapChainPanel and UWP applications, at least my knowledge ends at filling the color buffers. We could also just search the web for answers, of which unfortunately none seemed to immediately resolve your problem. You could post on a UWP related forum and ask there on how to setup for a transparent framebuffer overlay window.