INDX and "Full Spectrum" prints
I am really surprised I wasn't able to find any discussion about this project on the forum. Basically this is a technique that blends filament colors through dithering. You can use cyan, magenta, yellow and white to create a reasonable gamut of colors. You can also blend between any arbitrary colors. This is being shown off on the Snapmaker Orca Slicer fork for the U1. It takes TD (transmission distance) into account like HueForge. It seems to be an obvious case where the "brick layers" technique could be applied to allow even better color blending.
I'm pretty sure that this feature ported over to PrusaSlicer XL or INDX would be a huge selling point for users. I'm sure someone will implement it eventually, either entirely with Python (thus slicer-agnostic) or hopefully integrated directly into a fork of PS I am surprised I haven't been able to find discussion about wanting to see this feature supported in PS.
Here are a few random links about it. There is more on Reddit, Discord and Youtube, but you are on your own.
https://www.printables.com/model/1646424-snapmaker-orca-full-spectrum-test-objects
https://github.com/ratdoux/OrcaSlicer-FullSpectrum
https://github.com/halloworld007/snapmaker-u1-fullspectrum-helper
A little more technical background: https://github.com/justinh-rahb/filament-mixer
What do you think? Do you have a U1 and have you tried this? Would you like to see this working with the Core One INDX?