Q:

Add image to an event - Full Calendar

I have a json file with events, which are loaded in fullcalendar.js . I want to add an image to each event (before the timestamp of the event). I already looked up a solution on here: solution, but it didn't give me the answer because I think fullcalendar updated after that. 
I like to know these things: 
First of all: the 'img src' attribute, do I need to reference path from my HTML file or javascript file? 
Second: I think the .fc-event-title tag was removed from the CSS file, because I can't seem to find in the CSS file.
Thanks in advance and sorry for the lack of knowledge.

A:

I make it in the eventRender function (in json i have a event.icon):
eventRender: function(event, element, view) {

        if(event.icon){
            if(event.allDay){
                $(element).find('span:first').prepend('<img src="./fileadmin/images/layout/'+event.icon+'" />');
            }else{
                $(element).find('.fc-time').prepend('<img src="./fileadmin/images/layout/'+event.icon+'" />');
            }
        }
    },

And your second que:
Yes i have updated fullcalendar too, and some class names changed to a shorter version.

