Styling a calendar event with a custom class

Hello,

I’ve created a custom calendar with a database source which is working nicely.

However, I need to apply a conditional class on certain events.

To start, I created a class “event-danger” and applied a red background/text for this:

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Then, I make sure the class is applied to the Calendar source:

image433×680 21.5 KB

As far as I know, the calendar event should now have red background and text.

However, when looking at the event I get this:

image1585×610 21.3 KB

Does anybody know to use a custom class to apply styling to a calendar event? Am I missing something?