Uncommon Knowledge - WC_Atr_Ovr%

Field mark delimited list of the escape sequences for the colour attributes of the current application window. It is created from @AW combined with any over-riding attributes specified when painting the window (F10, More, Set Video). Note that as this is held as a common variable, current screen colours may not be changed on the fly by modifying @AW. This variable has the same structure as @AW (see REVMEDIA Vol 2 Issue 1 Page 9), except that field 10 contains a complete escape sequence for foreground and background.

(Volume 2, Issue 9, Page 11)