Created attachment 123308 [details] frame around window SUMMARY After updating to 5.17, I've noticed my gtk apps have a border, despite my Window Decoration being set to no border. Example apps - Firefox with title bar turned off, peek, gnome settings, Fedy - anything gtk. Forcing no border for individual apps has no effect. Also present on a fresh user profile. Was not present in 5.16.90 STEPS TO REPRODUCE 1. System Settings > Application Style > Window Decorations > Set drop down to no borders 2. Open Gtk App 3. Marvel at thick Window borders OBSERVED RESULT Window borders EXPECTED RESULT No Window borders SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: Fedora 30 (with Plasma 5.17 out of copr), also present on Neon User Ed 5.17 (available in About System) KDE Plasma Version: 5.17.0 KDE Frameworks Version: 5.63 Qt Version: 5.12 ADDITIONAL INFORMATION
Created attachment 123309 [details] apps with borders
Client side decorations are the client's responsibility. Rather than having *no* resize frame whatsoever, we chose to make a visible border. This will be fixed once we support the GTK shadow stuff properly but for now that's the best we can do.