src/elements/List/ListIcon.js
function ListIcon(props) {
  const { className, verticalAlign } = props
  const classes = cx(useVerticalAlignProp(verticalAlign), className)
  const rest = getUnhandledProps(ListIcon, props)

  return <Icon {...rest} className={classes} />
}
function ListIcon(props) {
  const { className, verticalAlign } = props
  const classes = cx(useVerticalAlignProp(verticalAlign), className)
  const rest = getUnhandledProps(ListIcon, props)

  return <Icon {...rest} className={classes} />
}
A list item can contain an icon.