I'd imagine graph could, at least according to plot(6), using co/cf commands. (Haphazardly) Changing e1 to e0 in cfill()/color() seemed to let me change foreground/pen colors at least, so I can do something like:
seq 0 5 | graph -a | plot -fb -cw to get white text on a blue background. ------------------------------------------ 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/T62d5b23c85d6a7c1-Me8d3246aab4e37be43a112ec Delivery options: https://9fans.topicbox.com/groups/9fans/subscription