On Wed, Apr 29, 2020 at 8:16 pm, Tres Finocchiaro via
desktop-devel-list <desktop-devel-list@gnome.org> wrote:
As an aside -- as a Java developer, I've personally never forced the
Gtk theme in my applications -- because back when I used KDE the Gtk
theming wasn't very good. From the comments above it sounds like the
mailing list is fairly comfortable stating that the Java Gtk theme
should simply be default for all Java applications on Linux and I'd
be happy to begin testing that theory as it may help simplify the
downstream implementation that OpenJDK chooses to implement.
Well it sounds like everyone here agrees it's the best choice
everywhere today. If you had a Qt theme, you would want to prefer that
when running on KDE or LXQt, and use GTK everywhere else. You would
want to detect those two desktops using $XDG_CURRENT_DESKTOP. But you
don't have a Qt theme, so best use GTK everywhere and you don't need to
bother with any environment variables. Simple.
I would worry about the future, though. I'm skeptical that updating to
GTK 4 will ever be possible (due to the removal of the foreign drawing
API that allows non-GTK apps to render boxes and buttons and such using
the GTK theme). So even if it's the best option today, I don't see much
long-term future here. I'm not sure what the Java community should be
doing, but probably thinking about this early would be better than
waiting until GTK 4 is released and it's too late for major changes.
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