Print at 100% infill with a layer height of 0.08mm with a base layer of 0.16mm

Filaments Used:

PLA Generic black Transmission Distance: 0.3
PLA Generic dark gray Transmission Distance: 1
PLA Generic light gray Transmission Distance: 2.5
PLA Generic white Transmission Distance: 2.8

Swap Instructions:

Start with black
At layer #6 (0.56mm) swap to dark gray
At layer #9 (0.8mm) swap to light gray
At layer #15 (1.28mm) swap to white for the rest.