Hartsfield-Jackson International Airport said it is testing the lighting system on a massive canopy under construction at the domestic terminal curbside.
The Atlanta airport has begun construction of the first of two canopies at the domestic terminal.
The Terminal North canopy is under construction and expected to be completed this fall, and the airport began testing nearly 1,000 lights on the canopy Wednesday evening at 11:05 p.m.
The test involves cycling through a dozen color combinations, according to the airport, which said it is "a partial display of what is expected to become the next architectural icon for the City of Atlanta."
The canopies and other terminal improvements are part of a $265 million construction contract, including work on the canopies, vestibules and terminal exterior, and other work inside the terminal and on the roof.
When the canopies are complete in fall 2019, there will be more than 3,600 lights diffused through a plastic canopy.
The canopy could be lit in different colors for special occasions such as red and black for a Falcons victory, green for Earth Day, or red white and blue for Independence Day, the airport said.