StacktraceTop: ?? () ?? () menu_set_background (value=<optimized out>, self=0xf35520) at menu.c:193 _vala_menu_set_property (object=<optimized out>, property_id=<optimized out>, value=<optimized out>, pspec=<optimized out>) at menu.c:253 menu_set_background (value=<optimized out>, self=0x7f951921f919) at menu.c:191
StacktraceTop: background (value=<optimized out>, self=0xf35520) at menu.c:193 menu_set_ property (object=<optimized out>, property_ id=<optimized out>, value=<optimized out>, pspec=<optimized out>) at menu.c:253 background (value=<optimized out>, self=0x7f951921 f919) at menu.c:191
?? ()
?? ()
menu_set_
_vala_
menu_set_