Customizable group opacity in MarkerCluster.Spiderfier.js

[oldrich-s]

I propose to make the group element opacity customizable instead of fixed value similar to leg options:

this.setOpacity(0.3);

[nikitalpopov]

Are there any workarounds to solve this? This doesn't work:

cluster.on('spiderfied', (event) => {
    event.cluster.options.opacity = 0;
});

cluster.on('unspiderfied', (event) => {
    event.cluster.options.opacity = 1;
});

[alpanyukov]

cluster.on('spiderfied', (event) => {
    event.cluster.setOpacity(0);
});

cluster.on('unspiderfied', (event) => {
    event.cluster.setOpacity(1);
});