- Specifying BACKGROUND-HIGH causes the background color to be shown in high-intensity. BACKGROUND-LOW causes it to be shown
in low intensity.
- BACKGROUND-STANDARD causes fields and controls to use the current subwindow's background intensity. When a window is created,
BACKGROUND-STANDARD causes the window to use the default background intensity for the host system. See the
BACKGROUND_INTENSITY runtime configuration variable in
Appendix H for more details.
- If no background intensity is specified, the current subwindow's intensity is used.
Note: Most character-based systems cannot control the background intensity.