/usr/include/rawstudio-2.0/ is in rawstudio 2.0-1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/rawstudio-2.0/rawstudio.h
/usr/include/rawstudio-2.0/rs-1d-function.h
/usr/include/rawstudio-2.0/rs-color-space-icc.h
/usr/include/rawstudio-2.0/rs-color-space-selector.h
/usr/include/rawstudio-2.0/rs-color-space.h
/usr/include/rawstudio-2.0/rs-color.h
/usr/include/rawstudio-2.0/rs-curve.h
/usr/include/rawstudio-2.0/rs-dcp-file.h
/usr/include/rawstudio-2.0/rs-debug.h
/usr/include/rawstudio-2.0/rs-exif.h
/usr/include/rawstudio-2.0/rs-filetypes.h
/usr/include/rawstudio-2.0/rs-filter-param.h
/usr/include/rawstudio-2.0/rs-filter-request.h
/usr/include/rawstudio-2.0/rs-filter-response.h
/usr/include/rawstudio-2.0/rs-filter.h
/usr/include/rawstudio-2.0/rs-gui-functions.h
/usr/include/rawstudio-2.0/rs-huesat-map.h
/usr/include/rawstudio-2.0/rs-icc-profile.h
/usr/include/rawstudio-2.0/rs-image.h
/usr/include/rawstudio-2.0/rs-image16.h
/usr/include/rawstudio-2.0/rs-io-job-checksum.h
/usr/include/rawstudio-2.0/rs-io-job-metadata.h
/usr/include/rawstudio-2.0/rs-io-job-prefetch.h
/usr/include/rawstudio-2.0/rs-io-job-tagging.h
/usr/include/rawstudio-2.0/rs-io-job.h
/usr/include/rawstudio-2.0/rs-io.h
/usr/include/rawstudio-2.0/rs-job-queue.h
/usr/include/rawstudio-2.0/rs-lens-db-editor.h
/usr/include/rawstudio-2.0/rs-lens-db.h
/usr/include/rawstudio-2.0/rs-lens-fix.h
/usr/include/rawstudio-2.0/rs-lens.h
/usr/include/rawstudio-2.0/rs-library.h
/usr/include/rawstudio-2.0/rs-macros.h
/usr/include/rawstudio-2.0/rs-math.h
/usr/include/rawstudio-2.0/rs-metadata.h
/usr/include/rawstudio-2.0/rs-output.h
/usr/include/rawstudio-2.0/rs-plugin-manager.h
/usr/include/rawstudio-2.0/rs-plugin.h
/usr/include/rawstudio-2.0/rs-profile-camera.h
/usr/include/rawstudio-2.0/rs-profile-factory.h
/usr/include/rawstudio-2.0/rs-profile-selector.h
/usr/include/rawstudio-2.0/rs-rawfile.h
/usr/include/rawstudio-2.0/rs-settings.h
/usr/include/rawstudio-2.0/rs-spline.h
/usr/include/rawstudio-2.0/rs-stock.h
/usr/include/rawstudio-2.0/rs-tiff-ifd-entry.h
/usr/include/rawstudio-2.0/rs-tiff-ifd.h
/usr/include/rawstudio-2.0/rs-tiff.h
/usr/include/rawstudio-2.0/rs-types.h
/usr/include/rawstudio-2.0/rs-utils.h
/usr/include/rawstudio-2.0/x86-cpu.h