iguanajuice
commented
8 months ago I don't really think this is possible without some serious modifications. When sway renders a full-screen window, it's not rendering anything below it; no wallpaper, no floating windows, no tiling windows. It's just rendering the full-screen window plus any top level shell effects (such as an app launcher).
But I'm not too familiar with sway's codebase, so correct me if I'm wrong.
What about windows transparency in Fullscreeen Mode?
I did a little research and I found this thread of the mainstream sway where this enhancement was declined.
Someone says this is expected "by design" behavior(due to security purposes). Here is the guy provided a patch(which is outdated as far as I understand) and Here is another one who provided more "fresh" version of this patch. By quickly glancing at the patch I think it's not a "Huge problem" to implement such functionality.
It would be great to have the ability to define something like:
for_window[class="foot"] fullscreen_transparency enable