Create extension point for Gtk4 themes
Context
A number of third party themes are interested in theming support for flatpaked Gtk4 applications that allow it.
The runtime needs to have an extension point to allow it.
Would be great to know if there are any plans for this.
See
Last discussion I can find:
https://github.com/flatpak/flatpak/issues/4605
Themes that want it:
https://github.com/lassekongo83/adw-gtk3/issues/235
https://github.com/flathub/org.gtk.Gtk3theme.Yaru/issues/10
https://github.com/pop-os/gtk-theme/issues/553
Thanks
Description
See above
Acceptance Criteria
See above
GNOME runtime request https://gitlab.gnome.org/GNOME/gnome-build-meta/-/issues/697