Colors are used with precision to add to the overall atmosphere.

I was told it would add to the romantic atmosphere of the island.

The sound design adds a lot to the surreal atmosphere.

The circular design worked well, the game was fun, and the music added to the atmosphere.

This special style adds something to the atmosphere of the town.

Kids in the studio just add to the right atmosphere.

Sure it added to the atmosphere of the book, which often seemed to be set in near darkness.

Source - Any process by which carbon dioxide is added to the atmosphere.

They add to the energetic atmosphere of not only games but to the campus as well.

The behavior of the players added to the atmosphere of the game.