Swap Instructions:
Start with Black
At layer #17 (1.44mm) swap to Grey
At layer #22 (1.84mm) swap to Blue
At layer #23 (1.92mm) swap to Red
At layer #31 (2.56mm) swap to Yellow
At layer #33 (2.72mm) swap to Pink
At layer #38 (3.12mm) swap to White for the rest.