Swap Instructions:
Start with Black
At layer #11 (0.96mm) swap to Blue
At layer #21 (1.76mm) swap to Cyan
At layer #25 (2.08mm) swap to Yellow
At layer #29 (2.4mm) swap to Pink
At layer #32 (2.64mm) swap to Red
At layer #38 (3.12mm) swap to White for the rest.