Changing the background in Adobe Illustrator involves altering the color or image displayed behind the artwork. A designer may change the background for aesthetic reasons, to match branding guidelines, or to improve visibility.
To change the background color, select the “Fill” tool in the toolbar and choose a color from the swatches panel. To change the background image, select the “Artboard” tool in the toolbar and click on the “Background Image” option in the properties panel. From there, you can browse and select an image from your computer or use one of Illustrator’s built-in patterns.