/usr/include/genometools/annotationsketch/ is in libgenometools0-dev 1.5.10+ds-2.
This file is owned by root:root, with mode 0o755.
..
/usr/include/genometools/annotationsketch/block_api.h
/usr/include/genometools/annotationsketch/canvas_api.h
/usr/include/genometools/annotationsketch/canvas_cairo_context_api.h
/usr/include/genometools/annotationsketch/canvas_cairo_file_api.h
/usr/include/genometools/annotationsketch/color_api.h
/usr/include/genometools/annotationsketch/custom_track_api.h
/usr/include/genometools/annotationsketch/custom_track_gc_content_api.h
/usr/include/genometools/annotationsketch/custom_track_script_wrapper_api.h
/usr/include/genometools/annotationsketch/diagram_api.h
/usr/include/genometools/annotationsketch/feature_index_api.h
/usr/include/genometools/annotationsketch/feature_index_memory_api.h
/usr/include/genometools/annotationsketch/feature_stream_api.h
/usr/include/genometools/annotationsketch/graphics_api.h
/usr/include/genometools/annotationsketch/graphics_cairo_api.h
/usr/include/genometools/annotationsketch/image_info_api.h
/usr/include/genometools/annotationsketch/layout_api.h
/usr/include/genometools/annotationsketch/rec_map_api.h
/usr/include/genometools/annotationsketch/style_api.h
/usr/include/genometools/annotationsketch/text_width_calculator_api.h
/usr/include/genometools/annotationsketch/text_width_calculator_cairo_api.h