Merge branch 'wip/jimmac/button-shed' into 'master'
authorMatthias Clasen <mclasen@redhat.com>
Sat, 12 Dec 2020 02:51:05 +0000 (02:51 +0000)
committerMatthias Clasen <mclasen@redhat.com>
Sat, 12 Dec 2020 02:51:05 +0000 (02:51 +0000)
headerbar window controls & clean up flat button extend

Closes #3427

See merge request GNOME/gtk!2942


Trivial merge