Is it possible to set a fully transparent background colour?

[MarkBorazio]

Hello,

I am manually creating a metal view using createMetalRenderView. I want to be able to set the background colour to be completely transparent. There is a setBackgroundColor function, however this doesn't allow an alpha value.
I have tried updating this function to allow an alpha parameter but this has no effect, assumably because of some configuration of the metal view which is something I am not familiar with.

Is there a way to achieve this?

[debugly]

This is indeed a difficult problem. I tried, but I failed.

[debugly]

@MarkBorazio can you give me a test sample?