So... I don't know anything about Wayland, really, so what follows may be irrelevant or nonsense but...
In my (scant) understanding I had somehow imagined that libdecor allowed to fltk to do window decorations IFF the active WM was not doing them - but that is not the case?
- If the WM is doing window decoration - how does that interact with fltk using libdecor?
- If fltk is compiled *with* libdecor, will it use that for window decoration regardless of what the WM is doing? Does that mean the window decorations will then *not match* the WM styling?
- Or, regardless of whether fltk "has" libdecor compiled in or not, will it detect and use the host WM decoration service, IF it is available?
I obviously have not grasped this yet!