How do I change my image back to default in ymaps?

Question

JavaScript

when points hit the polygon, I set the following parameters

preset: 'islands#redStretchyIcon',
                    iconLayout: 'default#image',
                    iconImageHref: "../img/231.png",
                    iconImageSize: [8, 8],
                    iconImageOffset: [-4, -4],
                    visible: true

let's say I need to mark the first point

object.options.set({'preset': 'islands#pinkDotIcon'});

if I specify labels without a picture img/231.png, then new labels are drawn as needed. With a picture, he doesn't want to. How can I return the default settings for the desired label and change their style?

Doesn't want to:

object.options.set('iconLayout', 'default#redPoint');