Since opam can trigger rebuild of macports package, my gtk3 ports has been rebuilt using quartz rather than X11. Good thing, powerful feature of opam.
Unfortunately, I’m getting an all grey top-level window, I mean initialization of the gtk3 widgets does not happen correctly. Here’s a screenshot:
By clicking approximatively on the location of a drop down menu, it does appear, but the rest of the widgets are still grey/inactive/uninitialized.
Another picture: the look of the same app using gtk2 and X11 still on macOS:
I’ve uploaded the “main” .ml file on the following URL:
What is wrong with my app, my initialization? Many thanks in advance!