/usr/share/xye/res/DejaVuSans.ttf is in xye-data 0.12.2+dfsg-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/xye/res/../../fonts/truetype/ttf-dejavu/DejaVuSans.ttf
/usr/share/xye/res/../../fonts/truetype/ttf-dejavu/DejaVuSans.ttf