In one of the scenes we see the team deciding what colour to whiten Alex's teeth to, as there are evidently many whites, but no actual "white" for such things.
The character played by Karen Gillan suggests they use the colour "Nebulous White". Is this a reference to her role as Nebula in the MCU?
From what i can gather this is the last movie she was in before cutting off that beautiful hair for the Nebula role (showing true commitment and professionalism to her art form imho).
I'm fairly sure there is nothing spoilerish here.