/usr/ is in libflowcanvas-dev 0.7.1+dfsg0-0.1.
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..
/usr/share/
/usr/share/doc/
/usr/share/doc/libflowcanvas-dev/
/usr/share/doc/libflowcanvas-dev/copyright
/usr/include/
/usr/include/flowcanvas/
/usr/include/flowcanvas/Connection.hpp
/usr/include/flowcanvas/types.hpp
/usr/include/flowcanvas/Module.hpp
/usr/include/flowcanvas/flowcanvas.hpp
/usr/include/flowcanvas/Connectable.hpp
/usr/include/flowcanvas/Canvas.hpp
/usr/include/flowcanvas/Port.hpp
/usr/include/flowcanvas/Ellipse.hpp
/usr/include/flowcanvas/Item.hpp
/usr/lib/
/usr/lib/pkgconfig/
/usr/lib/pkgconfig/flowcanvas.pc
/usr/share/doc/libflowcanvas-dev/changelog.Debian.gz
/usr/lib/libflowcanvas.so