I am trying to send my render output with alpha channel with syphon to another application.
It works well, if i set the erase_mode of my jit.gl.render to clearcolor.
But if i blend my content, it has always the background color of my jit.gl.render object inside.
Here is a patch, which simulates the problem.
I woud expect, that the shape at the copy_context window is not colored.
Perhaps someone had the same problem and solved it.