changing single event color

[Mw1995]

can i edit the color of the event not all calendar events ???

[cesarureno]

Yes, you need to send the background color in the 6 parameter, inside the array, like this:

$event = \Calendar::event(
                $my_event -> title, //Event title
                $my_event -> all_day, //Full day event
                $my_event -> start, //Start time
                $my_event -> end, //End time
                $my_event -> id, //Event ID
                [
                    'backgroundColor' => $back_color,
                    'textColor' => $text_color,
                    'description' => $my_event -> message
                ]
            );