(WINDOW-SET-ATTRIBUTE! window| attribute| value|)

This primitive is not new, but the meaning of value| has been precised; it is not as hardware-dependent as before, and doesn't change from text to graphic mode (assuming that you can display the same number of colors).

Value is always 8 bits: | a | b | c | d || e | f | g | h | where bits ad code for background color, bits ef for text color. Usually, bd and fh are the RGB components of the color, while a & e are intensity bits (on some adapters, intense background means blinking character).