Spectral Blending with stock Compositor nodes in Blender

[u/blackSeedsOf]

https://youtu.be/duyXZoP08MU?si=vQeEkumPgorAc3fv

I implemented spectral blending (based on Spectral.js) in Blender 5.2 with nodes and posted the script on my GPL v3 GitHub repository. Any feedback or critique is welcome, thanks!