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acyclic, bcomps, ccomps, circo, cluster, diffimg, dijkstra, dot, dot2gxl, dot_builtins, dotty, fdp, gc, gml2gv, graphml2gv, gv2gml, gv2gxl, gvcolor, gvgen, gvmap, gvmap.sh, gvpack, gvpr, gxl2dot, gxl2gv, lefty, lneato, mm2gv, neato, nop, osage, patchwork, prune, sccmap, sfdp, tred, twopi, unflatten, vimdot