Solution to Paint

Looking at all the dorms, we notice that one of them, Simmons Hall, has some peculiarities in its paint job. In particular, there are five places where there are brightly colored symbols drawn on the windows.

We can interpret each of these symbols using a common puzzle encoding:

Color	What We See	Encoding	Letter
Red	.--	Morse Code	W
Orange	∏	Pigpen Cipher	H
Yellow		Flag Semaphore	I
Green	⠞	Braille	T
Blue-Purple	E	Alphabet	E

Reading the letters in rainbow order, we get the answer, WHITE.