Spoke with the painters and they said they have to come back a few times to complete the painting. They said the final coat generally goes on after the tiles are laid so tilers don't dirty the walls etc.
@Orph
Build thread: viewtopic.php?t=78328
Home Furniture: viewtopic.php?t=80551
Technology Hub: viewtopic.php?t=83663
Landscape Design: viewtopic.php?t=80645