The colors form allows setting the colors when displaying events and segments by double-click on the related color cell:
Events without Media - All events for which no media has been associated.
Space expiring Today - Events which booked space expires in current open day.
Free Space - Segments without events scheduled.
Segment to Reload - Segments modified (e.g. events inserted, duration changed, etc) which needs to be reloaded.
Segments with Modified Structure - Segments inserted or pasted using the 'modify segment' function.
Event associated from Executive Editor - Event scheduled from Executive Editor and manually associated to an Air Sales structure (i.e. block). This events are also highlighted through an icon.