Hi airtren:
A certain very simple, small, visual message can be very strong
without being disruptive. An A/C Error Status Panel with 3 color coded
LEDs, to indicate and remind the type of Error messages that reflect the
current state of the a/c.
(1) Emergency/Fatal - maybe RED , (2) Warning - maybe Yellow,
(3) Informational - maybe Blue.
AKA as ECAM.
LEDs are in Master Warning [RED] & Master Caution [Amber]
and comes with audible alarms & chimes.