/usr/lib/pd/ is in pd-pan 0.1.2-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/pd/extra/
/usr/lib/pd/extra/pan/
/usr/lib/pd/extra/pan/linear_pan~.pd
/usr/lib/pd/extra/pan/linear_pan~-help.pd
/usr/lib/pd/extra/pan/equal_power_pan~.pd
/usr/lib/pd/extra/pan/square_root_pan~.pd
/usr/lib/pd/extra/pan/README.txt
/usr/lib/pd/extra/pan/pan-meta.pd
/usr/lib/pd/extra/pan/square_root_pan~-help.pd
/usr/lib/pd/extra/pan/gogins_pan~-help.pd
/usr/lib/pd/extra/pan/gpan~.pd
/usr/lib/pd/extra/pan/pan_core~.pd
/usr/lib/pd/extra/pan/equal_power_pan~-help.pd
/usr/lib/pd/extra/pan/gpan~-help.pd
/usr/lib/pd/extra/pan/pan_core~-help.pd
/usr/lib/pd/extra/pan/gogins_pan~.pd
/usr/lib/pd/extra/pan/LICENSE.txt