/usr/ is in libsdl-image1.2-dev 1.2.12-8.
This file is owned by root:root, with mode 0o755.
..
/usr/include/
/usr/include/SDL/
/usr/include/SDL/SDL_image.h
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/libSDL_image.a
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/SDL_image.pc
/usr/share/
/usr/share/doc/
/usr/share/doc/libsdl-image1.2-dev/
/usr/share/doc/libsdl-image1.2-dev/copyright
/usr/share/doc/libsdl-image1.2-dev/examples/
/usr/share/doc/libsdl-image1.2-dev/examples/Makefile
/usr/share/doc/libsdl-image1.2-dev/examples/showimage.c
/usr/lib/x86_64-linux-gnu/libSDL_image.so
/usr/share/doc/libsdl-image1.2-dev/changelog.Debian.gz