Meanwhile I'm surprized nobody's linked the teal splashes to their obvious source...
So what is special about the teal rather than the yellow?
There are very few colours in the strip, unless something else is blue- green that I don't know. It's the kitchen maybe.
If the paint was green it would look just like the portal , not the kitchen so I thought it's one of the few colours there are in UH, especially if it's a clue.
Uh... so maybe they ARE covered in nanites... and cheese.