Yup. There’s some discussion of this in this issue https://github.com/observablehq/plot/issues/359 https://github.com/observablehq/plot/issues/359, which notes

Yup. There’s some discussion of this in this issue https://github.com/observablehq/plot/issues/359 https://github.com/observablehq/plot/issues/359, which notes that the ~100 test plots in https://github.com/observablehq/plot/tree/main/test/plots https://github.com/observablehq/plot/tree/main/test/plots are rendered by Node with JSDOM by https://github.com/observablehq/plot/blob/main/test/plot.js https://github.com/observablehq/plot/blob/main/test/plot.js.