AppLayout: styling selected nav item

Good morning,

I’d like to change text and background color of a selected nav item in an AppLayout.
I checked How to style the App Layout component | Vaadin components, but couldn’t find the respective settings. Or am I misunderstanding some variable names?

Update: OK, the right place in the docs is How to style Side Navigation | Vaadin components

New question instead: how do I style this when using Lumo theme? The respective variables are only supported by Aura.

Update 2: vaadin-side-nav-item[current] it is.

(I’ll leave this here anyway, maybe someone is looking for the same.)