Print at 100% infill with a layer height of 0.08mm with a base layer of 0.16mm
Filaments Used:
PLA SmartFill True Black Transmission Distance: 0.4
PLA SmartFill Red Transmission Distance: 2.3
PLA SmartFill cold White Transmission Distance: 4
Swap Instructions:
Start with true black
At layer #8 (0.72mm) swap to red
At layer #15 (1.28mm) swap to cold White for the rest.
*Note: I just used up the smartfill red and used the Winkle devil red, feel free to use other brands or change the colours.