Top and bottom offset in the popup list

The `ms_popup_padding_top `and `ms_popup_padding_bottom` works not, only if you put to your dimens.xml this item:  `<dimen name="ms__item_height">24dp</dimen>`

After that the items in popup list have correct padding, except the first and last item.

I'd like some top and bottom offset in the popup list, so the first item won't be sticket to top as it's padding is ignored.