Bitfields for character's display attribute:
Bit(s)	Description	)
 7	foreground blink or (alternate) background bright (see also AX=1003h)
 6-4	background color (see #00015)
 3	foreground bright or (alternate) alternate character set (see AX=1103h)
 2-0	foreground color (see #00015)
SeeAlso: #00026