Customizing icon size displayed by elgg_list_entities?

I'm trying to display a list of entities (users, to be precise) with a bit bigger icon than usual (medium). I'd very much like to use the built in elgg_list_entities() function for displaying the user list. However, I couldn't find any way to trickle down the actual icon size information through elgg_list_entitites down to the icon view.

Is there any?

If not, what's my best shortcut for this? Best == minimum amount of custom views and code.