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There is a GTK3 backend now, hopefully that should make HiDPI work, support Wayland, etc. – depending on how it's implemented of course.

Doesn't look like it's ready to handle all the UI (?) though – in the promo screenshot there's one GTK window on top of a more classic Pharo window (?)

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it doesn't yet support the whole IDE (because it has some other complications, we will solve in next release), but it supports application development with it.

Cool. How does it work, is it 100% native widgets? Are there any platform specific (x11 etc.) things used?

it works everywhere gtk3 works (we have production applications in windows, macOS and obviously linux)

Because GTK3 is so great on Linux, we should run it on macOS and Windows too...

I don't know what they were thinking. As far as I can tell, Pharo UI history has been one bad (as in not pragmatic) decision after another.

It's the MVP of native GUIs. Should a purely-Win32-based UI arrive later, the additional work would at least be validated and trailblazed by the first Gtk implementation. You can't expect a small set of people do everything at once just because you want them to.

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