List-directive cannot style with item-dark

Hi,
I can not make the item blacks, through the “ion-list” directive.
Here’s an example:
codepen

it seems that automatically creates a class “item-complex” that causes the non-display of the item. in fact, if you remove the class “item-complex” you see everything properly.

It 'a bug or am I doing something wrong?

Thank you

Yup, this was an issue that was resolved in the nightly builds.