Theme for Windows is a combination of desktop background pictures, window colors, and sounds. Windows includes a set of personalization features like panoramic themes that extend across two monitors, windows colors that change automatically to match each desktop background image and the ability to have them appear on your Start screen. To get a theme click Download for windows, and then click Open. This saves the theme to your PC and puts it on your desktop. These themes allow you to customize your background windows according to your preferences.