Original bowl design using Fusion 360. The CAD is not designed as two color. The 60 small pyramids are integral with the rest of the vase. Creating a single .stl file. 

Tiertime UP Studio 3 slicer now has a "paint" function. Using that tool areas of any .stl file can be selected and manipulated. In this case using the separate function. This was used to "cut out" each pyramid in situ and assign a depth to be printed in a second color. In this case 2.5mm.

The printing ran for about 10 hours. The result of the print is good, but you don't need to judge my color selection. Ha!