Dr. Brennan tells Ms. Wick that her favorite color falls into the 520 to 570 nanometer range. This range includes greens and yellows on the visible light spectrum.
The agent Sweets (John Francis Daley) talks to in his office about multiple personalities, Agent Coors, is the same agent that was looking for advice for sex change when Booth interrupts in 6 episode 4 The Body And The Bounty.
Sweets refers to multiple personality, a psychiatric disorder, in a conversation with a coworker in his office. The name was changed to dissociative identity disorder with the DSM-IV in 1994. Sweets would know this.
Sweets asks Ms. Wick, "What are you driving at, Miss Daisy?" This is an obvious, and somewhat forced, play on the film, Driving Miss Daisy, starring Morgan Freeman and Jessica Tandy.