/usr/include/pango-1.0/pango/ is in libpango1.0-dev 1.40.5-1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/pango-1.0/pango/pango-attributes.h
/usr/include/pango-1.0/pango/pango-bidi-type.h
/usr/include/pango-1.0/pango/pango-break.h
/usr/include/pango-1.0/pango/pango-context.h
/usr/include/pango-1.0/pango/pango-coverage.h
/usr/include/pango-1.0/pango/pango-engine.h
/usr/include/pango-1.0/pango/pango-enum-types.h
/usr/include/pango-1.0/pango/pango-features.h
/usr/include/pango-1.0/pango/pango-font.h
/usr/include/pango-1.0/pango/pango-fontmap.h
/usr/include/pango-1.0/pango/pango-fontset.h
/usr/include/pango-1.0/pango/pango-glyph-item.h
/usr/include/pango-1.0/pango/pango-glyph.h
/usr/include/pango-1.0/pango/pango-gravity.h
/usr/include/pango-1.0/pango/pango-item.h
/usr/include/pango-1.0/pango/pango-language.h
/usr/include/pango-1.0/pango/pango-layout.h
/usr/include/pango-1.0/pango/pango-matrix.h
/usr/include/pango-1.0/pango/pango-modules.h
/usr/include/pango-1.0/pango/pango-ot.h
/usr/include/pango-1.0/pango/pango-renderer.h
/usr/include/pango-1.0/pango/pango-script.h
/usr/include/pango-1.0/pango/pango-tabs.h
/usr/include/pango-1.0/pango/pango-types.h
/usr/include/pango-1.0/pango/pango-utils.h
/usr/include/pango-1.0/pango/pango-version-macros.h
/usr/include/pango-1.0/pango/pango.h
/usr/include/pango-1.0/pango/pangocairo.h
/usr/include/pango-1.0/pango/pangofc-decoder.h
/usr/include/pango-1.0/pango/pangofc-font.h
/usr/include/pango-1.0/pango/pangofc-fontmap.h
/usr/include/pango-1.0/pango/pangoft2.h
/usr/include/pango-1.0/pango/pangoxft-render.h
/usr/include/pango-1.0/pango/pangoxft.h