@Fil are you planning on using the color?

yes—that was an oversight; thanks!

Drag on canvas is not working. To fix need to Add .subject(dragsubject) to d3.drag() return d3.drag() .subject(dragsubject) .on("start", dragstarted) .on("drag", dragged) .on("end", dragended); And add this function function dragsubject(event) { return simulation.find(event.sourceEvent.offsetX, event.sourceEvent.offsetY); } Example with fix: https://observablehq.com/d/503318dd2424db77

thank you!

I get a nodeID is not defined ReferenceError with this, however the file seems to load correctly. Can someone help?