Setting the Screen Background Color On color or intensity systems, you can change the screen background color. To change the background color: 1. Choose Screen Background... from Session Manager's Options menu. Session Manager displays the Screen Background Options dialog box. 2. Click on the Screen Background Color button. The Session Manager displays a color mixing dialog box. For more information about mixing colors, click on Help in the color mixing dialog box. 3. To see your changes, click on OK or Apply in the Screen Background dialog box.