My Sauce: Read Between the Lights

Driving past the old Shaw building (or CB&I or B&R, whatever it is now) tonight, the accent lights at the top were alternating purple / gold as they often do during football/baseball season.
But there were two lights to the right that didn't match. One was red & the other blue.

Clearly, this double rainbow is a nod from someone closely tied to the coaching search.
Confirmed - Kiffin's inbound!