Is it possible to add our own icons for tasks on the springboard?

Summary

We would like to add our own icons as tasks on the springboard

Content

We would like to add our own icons as tasks on the springboard in Fusion HCM and I would like to know if this can be done or are we limited to the delivered icons.  If we can add our own icons, how do we add the icons so we can select them when updating the structure?

I have reviewed the documentation but I can't find anything relating to this.