Delta Air Lines is giving its planes a brand-new look. The Atlanta-based carrier has unveiled a nose-to-tail redesign of its cabin interiors, which will update the jets with everything from improved lighting to more natural colors on seats.

The upgrade comes as Delta closes in on its 100th anniversary. The first upgraded interior will take off this fall in a narrow-body Boeing 757 aircraft that will begin flying on domestic and short haul international routes. A second plane, focusing on long-haul international flights will show off the new design next year, but over the next few years, Delta plans to roll it out across more planes.

“Delta has taken the time to develop every detail of our new interiors; the team was intentional in creating an experience that mimics our customers’ lifestyles and puts them at ease as soon as they board our aircraft,” said Mauricio Parise, vice president of customer experience design in a statement.

Pretty much every part of the cabin will see changes. One of the biggest changes will be an adjustment to the color palette in planes, which will be more modern and use the carrier’s red, white, and blue color scheme in a more subtle manner, mixed with natural materials such as wool.

Cabin lighting is being dramatically upgraded as well and will shift during different phases of the flight, Delta says. During boarding, for instance, cabin lighting will be “warm and inviting” to make the cabin appear more spacious. At mealtime, it will be dimmed to simulate a candlelight environment. At night, blue light will slowly be removed as amber tones are introduced to re-create a sunset—and mornings will slowly brighten, rather than bringing a sudden blast of light.

Seats will be upgraded in all sections. Delta One passengers will be seated in breathable fabric seats, which better regulate temperature, and leather headrests. Delta Comfort + and main cabin passengers will have memory-foam cushions for enhanced comfort.

Even the bathrooms are getting an upgrade, with bright walls and an accent wall opposite the mirror. Flight attendants will wear new uniforms as well. This is on top of the company’s recently announced plans to upgrade its in-flight connectivity.

A Delta spokesperson told Fortune "all aircraft will receive the new interior/design. By the end of 2025, all new deliveries will come in the new onboard design."

This story was originally featured on Fortune.com