EFIS Control Panel
When the CSTR button is selected ON; the altitude, speed, or time constraints are displayed a magenta color.
ALTITUDE CONSTRAINT SYMBOL
When the CSTR button is selected ON, the altitude constraint symbol is displayed in conjunction with the flight plan waypoints if in a descent mode. The MCDU will indicate the predicted altitude crossing at the fix. The color of the altitude constraint symbol indicates predicted altitude constraint compliance or non-compliance.
MAGENTA/AMBER CONSTRAINT SYMBOL
When in descent mode (DES), the altitude constraint symbol is a magenta color if the constraint is predicted to be met or an amber color if predicted to be missed.