Change the day background color in FullCalendar

Question

I\'m using FullCalendar in my asp.net application. I need to change the day background color.

What i have tried so far :

Answer 1

dayRender : function(date, cell) {
                            var idx = null;
                            var today = new Date().toDateString();
                            var ddate = date.toDate().toDateString();

                            if (ddate == today) {
                                idx = cell.index() + 1;
                                cell.css("background-color", "azure");
                                $(
                                        ".fc-time-grid .fc-bg table tbody tr td:nth-child("
                                                + idx + ")").css(
                                        "background-color", "azure");

                            }

                        }