/usr/share/photoml/xsl/ is in photoml 0.28-0ubuntu2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/photoml/xsl/defaults/
/usr/share/photoml/xsl/defaults/debug.xsl
/usr/share/photoml/xsl/defaults/defaults.xsl
/usr/share/photoml/xsl/defaults/expand.xsl
/usr/share/photoml/xsl/defaults/merge.xsl
/usr/share/photoml/xsl/defaults/valid.xsl
/usr/share/photoml/xsl/html/
/usr/share/photoml/xsl/html/cssinc.xsl
/usr/share/photoml/xsl/html/detailed.xsl
/usr/share/photoml/xsl/html/index.xsl
/usr/share/photoml/xsl/html/preindex.xsl
/usr/share/photoml/xsl/html/summary.xsl
/usr/share/photoml/xsl/misc/
/usr/share/photoml/xsl/misc/create.xsl
/usr/share/photoml/xsl/misc/digital.xsl
/usr/share/photoml/xsl/misc/valid.xsl
/usr/share/photoml/xsl/misc/xmp.xsl
/usr/share/photoml/xsl/upgrade/
/usr/share/photoml/xsl/upgrade/digim-0.01-0.02.xsl
/usr/share/photoml/xsl/upgrade/digim-0.02-0.03.xsl
/usr/share/photoml/xsl/upgrade/photo-0.08-0.09.xsl
/usr/share/photoml/xsl/upgrade/photo-0.09-0.10.xsl
/usr/share/photoml/xsl/upgrade/photo-0.10-0.11.xsl
/usr/share/photoml/xsl/upgrade/photo-0.11-0.12.xsl
/usr/share/photoml/xsl/upgrade/photo-0.12-0.13.xsl