#0  0x00002b0bc543417f in cairo_set_source_rgba () from /usr/lib/libcairo.so.2
#1  0x000000000040d3ba in ?? ()
#2  0x000000000040a681 in ?? ()
#3  0x00002b0bc32018b1 in decor_shadow_create ()
   from /usr/lib/libdecoration.so.0
#4  0x000000000040a3e4 in ?? ()
#5  0x000000000040fd21 in ?? ()
#6  0x00002b0bc7d018e4 in __libc_start_main () from /lib/libc.so.6
#7  0x0000000000406719 in ?? ()
#8  0x00007fffe7acaad8 in ?? ()
#9  0x0000000000000000 in ?? ()