On the detailed day view when you click on a day, it would be nice to lighten/phase out the events that have already occurred. For example if it’s 1pm and there was an event from 8am-10am, after 10am that event would be lighter in color and/or crossed out (similar to when a todo item is checked off/completed). This would mimic crossing off things on a calendar and let you quickly see what is left in the day without having to look at the times of events.

It could be an optional feature in settings.