desktop background

Translations
фон рабочего стола
He changed the desktop background to a picture of the mountains.
Он изменил фон рабочего стола на картинку с горами.
Definitions
The desktop background is the image or color that appears on the main screen of a computer's operating system, serving as a visual backdrop for icons, windows, and other elements displayed on the desktop.
Words
background

noun
фон
desktop

adjective
настольный