There are a few things you can do to change the background color of your Illustrator file. The first is to open the Colors palette and select a color. Then, use the tools in the palette to change the color of your background. The next step is to open the Backgrounds palette and select a background image. Change the size and opacity of the image to match your desired background color. Finally, save your file with a new name and return to Illustrator to finish changing the background color.
