Customizing the calendar by having a booked event and a pending event appear differently

I am building a wedding venue site. I need the events to come into the calendar graphic as different colors. One color (red) for "booked" and a different color (yellow) for "pending." So I feel like I need to go into custom css and enter some kind of command that determines which is which. I also would like to NOT display the time that the event starts and ends - its a day booked or pending. Does anyone know what the custom code might be or is there another way around it?

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