fileView/server/LibreOfficePortable/App/libreoffice/help/media/icon-themes/res/minus.svg

<svg viewBox="0 0 11 11" xmlns="http://www.w3.org/2000/svg">
  <path
     style="fill:#3a3a38"
     d="M 1 5 L 1 6 L 10 6 L 10 5 L 1 5 z "
     />
</svg>