in assets/js/slick.js [933:967]
Slick.prototype.fadeSlide = function(slideIndex, callback) {
var _ = this;
if (_.cssTransitions === false) {
_.$slides.eq(slideIndex).css({
zIndex: _.options.zIndex
});
_.$slides.eq(slideIndex).animate({
opacity: 1
}, _.options.speed, _.options.easing, callback);
} else {
_.applyTransition(slideIndex);
_.$slides.eq(slideIndex).css({
opacity: 1,
zIndex: _.options.zIndex
});
if (callback) {
setTimeout(function() {
_.disableTransition(slideIndex);
callback.call();
}, _.options.speed);
}
}
};