Reading symbols from /usr/bin/xpad...done.
(gdb) run
Starting program: /usr/bin/xpad 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".

(xpad:21170): Pango-CRITICAL **: pango_font_description_get_set_fields: assertion 'desc != NULL' failed

Program received signal SIGSEGV, Segmentation fault.
0x00007fca20e897f9 in gdk_rgba_to_string () from /usr/lib/libgdk-3.so.0
(gdb) backtrace 
#0  0x00007fca20e897f9 in gdk_rgba_to_string () at /usr/lib/libgdk-3.so.0
#1  0x000000010002159c in xpad_text_view_set_colors (view=0x1005c64c0, text_color=0x1002ea320, back_color=0x0) at xpad-text-view.c:341
#2  0x0000000100021562 in xpad_text_view_notify_colors (view=0x1005c64c0) at xpad-text-view.c:335
#3  0x0000000100020eb5 in xpad_text_view_set_property (object=0x1005c64c0, prop_id=4, value=0x7fffffffdd70, pspec=0x100456590) at xpad-text-view.c:197
#4  0x00007fca1fa9535a in  () at /usr/lib/libgobject-2.0.so.0
#5  0x00007fca1fa96dbd in g_object_new_valist () at /usr/lib/libgobject-2.0.so.0
#6  0x00007fca1fa97201 in g_object_new () at /usr/lib/libgobject-2.0.so.0
#7  0x00000001000206e7 in xpad_text_view_new (settings=0x1005163f0, pad=0x1005c4490) at xpad-text-view.c:74
#8  0x000000010000e2ca in xpad_pad_constructed (object=0x1005c4490) at xpad-pad.c:320
#9  0x00007fca1fa951e0 in  () at /usr/lib/libgobject-2.0.so.0
#10 0x00007fca1fa96dbd in g_object_new_valist () at /usr/lib/libgobject-2.0.so.0
#11 0x00007fca1fa97201 in g_object_new () at /usr/lib/libgobject-2.0.so.0
#12 0x000000010000da3f in xpad_pad_new_with_info (group=0x1005980a0, settings=0x1005163f0, info_filename=0x1005baceb "info-77NY9X", show=0x7fffffffe680) at xpad-pad.c:158
#13 0x000000010000c509 in xpad_app_load_pads () at xpad-app.c:487
#14 0x000000010000bad9 in xpad_app_init (argc=1, argv=0x7fffffffe808) at xpad-app.c:177
#15 0x000000010000bbc3 in main (argc=1, argv=0x7fffffffe808) at xpad-app.c:199
(gdb)