LGBTQ students at BYU light up the âYâ in rainbow colors The event marks the anniversary of when the university clarified that same-sex romantic behavior is ânot compatibleâ with its rules. (Isaac Hale | Special to The Tribune) The Y on Y Mountain east of Provo is lit in rainbow-flag colors to show support for the LGBTQ+ community on Thursday, March 4, 2021. | Updated: 6:31 p.m. Provo ⢠At first they looked like colorful sparks. Bright bursts of blue and green and red flashed Thursday night on the dark mountain that stands over Provo. An orange one would shine for a second and then extinguish. Another in purple would strike up a few feet away before flickering out.