Nathan Lilienthal

I might be misreading the effect of this PR, but it seems to be mostly setting things to a reasonable default for when there’s no transparency or custom colors desired....

IDK, it seems to still be drawing a dark title bar, but no border as desired. I didn't follow the PRs in winit, so I'm not sure what I expect...

@kchibisov seems like this PR is still functional. In fact it seems to improve the performance of the app switcher (Expose) since the window is now longer partially transparent. This...

Here's a video showing the performance difference of Mission Control. `master`:  `mac_transparency` (this branch): 

Also, here's the old/new behavior when dragging Alacritty windows between spaces. `master`:  `mac_transparency` (this branch): 

@kchibisov leave me a day to recollect myself, I may have tested this wrong. Now when I compile `master` it seems the title bar is not transparent as intended. It's...

Seems to only happen if there's another alacritty window already open for me.

#7965 seems to fix this as well. @steveyko if you can build and run that PR, could you confirm this?

I get the expected behavior of the four macOS options for decorations really confused TBH. If what you say is true however, then the only difference between `"Buttonless"` and `"None"`...

> Set the title bar as transparent (new) Seems to me this may be undesired. I hate to think we need yet another macOS specific configuration for it though.