Release Notes: - N/A Following up to #10880 TODO: - [x] create window as transparent - [x] X11 - [x] Wayland - [ ] Windows - [x] MacOS (when used with Blade) - [x] enable GPU surface transparency - [x] adjust the pipeline blend modes - [x] adjust shader outputs  Blurred results from @jansol (on Wayland), who contributed to this work:  --------- Co-authored-by: Jan Solanti <jhs@psonet.com>