Nice update.  I'm guessing here, but is Willow so upset/riled up that her magic is cycling the room through the colors in their code and she thinks about that past conversation?

Author's Response: I decided not to Willow bash in this story. She has a lot of power and a big heart and when she gets very emotional her power reacts usually attacking. She trained herself to do something relatively harmless instead of changing people into furry critters.  So the room changes color easy to fix and sometimes the people leave as they like the new color.