Here's a 2-dimensional version where you pick the angles https://observablehq.com/@jrus/categorical https://observablehq.com/@jrus/categorical If you want to k

Here's a 2-dimensional version where you pick the angles https://observablehq.com/@jrus/categorical https://observablehq.com/@jrus/categorical If you want to keep the points theoretically ideally separated out to as many as colors as you want, you can use the "plastic sequence" for your parameters, https://observablehq.com/@jrus/plastic-sequence https://observablehq.com/@jrus/plastic-sequence