flux:navlist.group icon

[Websetdk1]

would be really cool to be able to replace the default arrow icon for expandable flux:navlist.group, by adding the icon attribute,
just like on the flux:navlist.item

<flux:navlist.item icon="chart-pie" href="/dashboard">
Dashboard
</flux:navlist.item>

something like:
<flux:navlist.group expandable icon="shopping-cart" class="hidden lg:grid">
<flux:navlist.item href="/orders">
Orders
</flux:navlist.item>
</flux:navlist.group>