Pretty neat! One suggestion I'd make is to make the animation a bit slower or allow custom speeds to be set. It's currently a little to fast for my taste.
Well done! Showing multiple spectra as merge approaches one unit is very illustrative of how local the arrangement really is.
Hahah, well I think it's very nice that we have both. The rainbow approach is very nice for me for many reasons, namely that rainbows are the chief illusion of the cosmos (instantaneous coming together of causes and conditions) and rainbows/light spectra are also fractyllic in their representations (each droplet of water holds a complete rainbow, but zooming out rather than seeing many small rainbows you see one large one)
I want more information on these topics you mention, please. Thank you.
Super nice. But is this really an efficient sorting algorithm?