This example tag is designed and sliced with stacked 0.08mm layers, illustrating the variable translucence of thin layers. Allows a sort of blending of colours. Much more capably done by the software HueForge, but sometimes you just need a little bit of blending.
Printed on a Prusa i3Mk3S+, 0.4mm nozzle, PLA, typical Prusa profile.
In Prusaslicer, add a Height Range Modifer for 1-1.5mm heights and specify layer thickness of 0.08mm. Print lower layers at the standard 0.2mm height. 100% infill.
I used this to some effect printing emoji fridge magnets for a crude graduated fill.
The author marked this model as their own original creation.