This is an experiment using thin layers to give the effect of multiple shades of a color.

The base is printed in white and the pattern is printed in up to three layers of 0.15mm for the three shades of red.

This model won't print correctly without 0.15mm layers. Using a moderately transparent PLA for the top layer is advised.

This design is based on my generative artwork piece https://openprocessing.org/sketch/1188762