BACKGROUND_INTENSITY

This variable is used to choose a background intensity. Use one of these values:

0 The runtime uses the default intensity, which is based on your hardware and operating environment. Under MS-DOS, the default background intensity is low-intensity. Under Windows, the default background intensity is high-intensity.

1 The runtime uses low-intensity.

2 The runtime uses high-intensity.

There are two important exceptions:

• The runtime always assigns low-intensity to the background if the background color is black. Using high-intensity would cause the background to be dark gray, which tends to make the screen look muddy.
• Many devices do not support a background intensity independent from the foreground intensity (most terminals for example). If this is the case the runtime declares the background intensity to be low-intensity.

The default value is "0".