Graphviz is a framework for graph visualization. It consists of a graph representation format, and a library and executables for rendering these graphs into raster or vector images (PNG, SVG and other formats). GraphViz is well-established (created before 1991) and relatively popular; The GraphViz format and/or rendering enginers are used by several platforms and apps, including the Confluence wiki system, Scribus, Doxygen and Sphinx documentation generators (they make graphs from your source code file relations) etc. See: * https://graphviz.org/ * https://en.wikipedia.org/wiki/Graphviz * https://dreampuf.github.io/GraphvizOnline/ Now, many people use LO to draw graph-like objects - with nodes and edges, and with some visual styling of the nodes (which graphviz supports). It would be nice if we could export sets of drawing objects out into .gv GraphViz file.