GAF1 dark reversion is influenced by other IflA608 domains and the Pg:Pb ratio of GAF3. Twelve-hour dark reversion analysis of IflA GAF1 after (A) red or (B) far-red light exposure, 24-h dark reversion analysis of IflA GAF3 after (C) blue or (D) green light exposure, and 16-h dark reversion analysis of IflA608 after red (E), far-red (F), blue (G), or green (H) light exposure. For all, line color denotes length of time in the dark after the initial light treatment (insets), and black dashed lines are spectra after irradiation with opposite light color (red/far-red or blue/green) postdark treatment.