Description of problem:
Do not know why it crashed. It was minimized at the time.
Version-Release number of selected component:
runlevel: N 5
Thread no. 1 (6 frames)
#0 g_type_check_instance_is_a at ../gobject/gtype.c:4016
#1 gtk_widget_show at gtkwidget.c:3236
#2 gtk_box_forall at gtkbox.c:1251
#5 gtk_paned_forall at gtkpaned.c:1462
#6 gtk_box_forall at gtkbox.c:1251
#8 gtk_button_setting_changed at gtkbutton.c:2122
Potential duplicate: bug 1433024
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> Do not know why it crashed. It was minimized at the time.
Are you sure? Let me give a hint: bug 1882947
Interesting. Was using the MATE desktop at the time. And glib2 was updated since then.
There is another updated version (2.66) but Fedora Kojiweb is not showing a package for Fedora 32.
As mentioned, nothing in the glib2 update news indicates that it would fix such an issue.
Again it's a crash deep in GTK+2 as a result of changing a theme and the code going through gtk_rc_settings_changed --> IA__gtk_rc_reparse_all_for_settings. In the older ticket to theme "Mint-Y-Red". In this ticket to "Menta".