FullCallendar Config Malformed JSON Error

Hi! I’m attempting to set the default view to list. I copied the instructions and code at https://michielvaneerd.github.io/privategooglecalendars/examples/ , however whenever I paste that in the FullCalendar config text field, the field turns red and I get a “malformed JSON” error. The calendar is not affected on the webpage.

Here’s the section from the site I was attempting to use:
{
“header”: {
“left”: “prev,next today”,
“center”: “title”,
“right”: “dayGridMonth,listWeek”
},
defaultView: “listWeek”
}