icon: bars
label: tab.navigation.label
columns:
  - width: 1/4
    fields:
      _navigation:
        label: field.navigation.label
        type: headline
  - width: 3/4
    sections:
      placeholder: &placeholder
        headline: Placeholder
        type: info
        text: " "
  - width: 1
    fields:
      _line1: &line
        type: line
  - width: 1/4
    fields:
      _footer:
        label: field.footer.label
        type: headline
  - width: 3/4
    sections:
      placeholder: *placeholder