TUPLE: graph-attributes Damping K URL aspect bb bgcolor center charset clusterrank
color colorscheme comment compound concentrate defaultdist
dim dimen diredgeconstraints dpi epsilon esep fillcolor
fontcolor fontname fontnames fontpath fontsize id label
labeljust labelloc landscape layers layersep layout levels
levelsgap lheight lp lwidth margin maxiter mclimit mindist
mode model mosek nodesep nojustify normalize nslimit
nslimit1 ordering orientation outputorder overlap
overlap_scaling pack packmode pad page pagedir pencolor
penwidth peripheries quadtree quantum rank rankdir ranksep
ratio remincross repulsiveforce resolution root rotate
searchsize sep showboxes size smoothing sortv splines start
style stylesheet target tooltip truecolor viewport
voro_margin
;