Color gradients seem to be the new like for Sankey diagrams. I already featured an example in yesterday’s post. The new e!Sankey 3.1 version has a color gradient feature now as well.
This diagram is taken from the samples included in the trial version. Traffic flows at a fictitious highway intersection is shown with the number of cars going from A to B, A to C, and so on.
It is not new at all (see this post) but has been pimped and now sports the color effect and some icons. Nice!