CMS Made Simple Forums

In the full view calendar I would like to have the expired events in grey just to distinguish them more from the upcoming. Eg when someone goes back a month they can still look active despite the month above telling them!

https://rvjazzandblues.co.uk/events-calendar.html

Could you direct me to a bit of code to put beside the "eventColor: '{$dflt_bgcolor}'," in the template to change the colour of a past event?

Many thanks

John F