Actually more specific is 'alluvial diagram' [1] since the style emphasizes a 'flow' character. [1] https://en.wikipedia.org/wiki/Alluvial_diagram https://en.w

Actually more specific is 'alluvial diagram' [1] since the style emphasizes a 'flow' character. [1] https://en.wikipedia.org/wiki/Alluvial_diagram https://en.wikipedia.org/wiki/Alluvial_diagram [2] https://en.wikipedia.org/wiki/Sankey_diagram https://en.wikipedia.org/wiki/Sankey_diagram