The sandbox at the end has a slider to change the ratio so you can tune it to simulate race instead of gender (although having more than two shapes would be nic

The sandbox at the end has a slider to change the ratio so you can tune it to simulate race instead of gender (although having more than two shapes would be nice, and also other dimensions than shapes to observe intersectional interactions). [edit] ... and someone did add a shape: http://dncnmcdougall.github.io/polygons/ http://dncnmcdougall.github.io/polygons/