I would like to change the size limits for the 3 sizes small, medium and large in markercluster.

I have found it in the leaflet.markercluster.js file:

_defaultIconCreateFunction:function(e){var t=e.getChildCount(),i=" marker-cluster-";return i+=t<10?"small":t<100?"medium":"large"

But I would like to change it in the js-file that loads my map instead so that I do not have to remember to change it every time I get a new version.

All I have en regards to markercluster in that file is:

var clusterLayer = L.markerClusterGroup({showCoverageOnHover: false, maxClusterRadius: 40, spiderLegPolylineOptions: {weight: 5, color: '#E0AA5E', opacity: 0.9 }});