Reporter Info
Actual Issue
The header bar in GNOME Tweaks using the Fedora 31 Beta with all updates applied is completely black with jagged corners. This occurs using all variants, including compact ones. It does not occur using Adwaita or another theme (in this case, Qogir).
Thanks for your report. I've confirmed this problem.
I'm pretty sure this is due to some upstream bug, not our failure. (In fact, in Adwaita, the top left border-radius is broken when the window width is narrowed.) But I will add some workaround :)
Just as a supplement: A similar problem exists even with Adwaita. See:
https://gitlab.gnome.org/GNOME/gnome-tweaks/issues/236
https://gitlab.gnome.org/GNOME/gnome-tweaks/issues/238
Thanks for looking into it! It must be frustrating to have so many upstream changes mess with the beautiful look of Materia (but I will say that the new Adwaita is far more attractive than before!)
Most helpful comment
Thanks for looking into it! It must be frustrating to have so many upstream changes mess with the beautiful look of Materia (but I will say that the new Adwaita is far more attractive than before!)