A girl in a swimsuit on the background of a sea sunsetA girl in a swimsuit on the background of a sea sunset
A bright bird of paradise in flight on a dark backgroundA bright bird of paradise in flight on a dark background
A bridge over the river and a house overgrown with greenery against the background of mountainsA bridge over the river and a house overgrown with greenery against the background of mountains
Основной цвет, тон, на к-ром пишется картина. Задний план картины. Общие условия, обстановка, где что-н. происходит ( книжн. ). Единица степени громкости.