in content/assets/javascripts/paradox-material-theme.js [123:129]
function visitList(list, path, level) {
list.classList.add('md-nav__list')
list.setAttribute('data-md-scrollfix', '')
list.querySelectorAll('li').forEach((item, itemIndex) => {
visitListItem(item, path + '-' + itemIndex, level)
})
}