Flights whose scheduled time of departure (STD) is more than 6 hours ago are shown in grey font and grey background, as are flights whose STD is more than 36 hours in the future. The grey dot appear if you select/plan a flight in future (or past) - no matter if you do an action or not.
Flights whose STD is overdue are shown in red font and have a red button to their left.
Flights whose STD is within the next 2 hours are shown in amber font and have an amber button to their left.
A Flight get a green dot and get a green Background if you already released a flight plan.
Do you also need the meaning of the STATUS symbols?
Best regards, Judith