adw-gtk3 v4.5
Full Changelog: v4.4...v4.5
This release includes the libadwaita 1.3 gtk4 theme for gtk4 apps that don't use libadwaita. The gtk4 theme is not supported in adw-gtk3's issue tracker. It's just there to make sure mutter 44 title bars are consistent. It's provided as is. The readable source is located at: https://gitlab.gnome.org/GNOME/libadwaita/-/tree/libadwaita-1-3/src/stylesheet
If you've followed this guide: https://github.com/lassekongo83/adw-gtk3/blob/main/gtk4.md - then you no longer need that version of the theme.
If you install the theme from the main branch, then it's recommended to reconfigure the build folder, or remove it and then create it again.