Backgroundcolor for events

[Azilla030]

Hey everyone I would like change the background color from my events so if my calendar appear I would fill this with color like in the same style if I click on them.
I looking for similar solution like this:
https://stackoverflow.com/questions/64769445/how-to-make-event-marked-as-big-colour-circle-in-fscalendar

If I do this
cell.appearance.eventDefaultColor = UIColor.blue

I don't see the font anymore