Int 2F Fn AC10 - Qrip/tsr - Set Output Color For Protected Area [V]
AX = AC10h
DI = 1092h
BL = new attribute (bit 7 set for high-intensity background)
Return: nothing
Note: if DI <> 1092h on entry, QRIP chains the call
See Also: AX=AC0Dh,AX=AC0Eh,AX=AC0Fh,AX=AC11h,AX=ACF0h