/usr/share/doc/ripe-atlas-tools-doc/html/_static/fonts/RobotoSlab-Bold.ttf is in ripe-atlas-tools-doc 1.2.2-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/ripe-atlas-tools-doc/html/_static/fonts/../../../../../sphinx_rtd_theme/static/fonts/RobotoSlab-Bold.ttf