Version-Release number of selected component:
mate-panel-1.6.1-4.fc19

Additional info:
reporter:       libreport-2.1.12
backtrace_rating: 4
cmdline:        mate-panel
crash_function: match_widget_class_recursive
executable:     /usr/bin/mate-panel
kernel:         3.12.8-200.fc19.x86_64
runlevel:       N 5
type:           CCpp
uid:            1001

Truncated backtrace:
Thread no. 1 (10 frames)
 #0 match_widget_class_recursive at gtkrc.c:4761
 #1 _gtk_rc_match_widget_class at gtkrc.c:4891
 #2 gtk_rc_styles_match at gtkrc.c:1887
 #3 gtk_rc_get_style at gtkrc.c:1993
 #4 gtk_widget_reset_rc_style at gtkwidget.c:6608
 #5 reset_rc_styles_recurse at gtkwidget.c:7211
 #6 gtk_menu_shell_forall at gtkmenushell.c:1113
 #7 gtk_fixed_forall at gtkfixed.c:452
 #8 gtk_table_forall at gtktable.c:935
 #9 gtk_rc_reset_widgets at gtkrc.c:1642