What is the meaning of red and green for the No's in the attached screenshot?

Changing "Disabled: (green) No" to "Enabled: (green) yes" would fix this inconsistency.

Also - in that same view - "Event source details" should be renamed to "Current event source details". That panel doesn't show historical state of the trigger when the event was created (as one could expect) but rather the current configuration of the trigger. Let's be explicit about this.