The ice cube on f102v

[BessAgritianin]

But we have evidence that the colors were added after the VMS was finished, by someone else. How can you be so sure that the intended color was blue?

Thank You for raising this point. 
However this is not a consensus that the colours are added later. 
Latest X-ray elemental analysis of folio 1r ans 1v, conducted by the Yale team, found no evidence that the pigments are added later.
The colors were not applied ignorantly. They are meaningful.