fontawesome6/asset/svgs/duotone/underline.svg

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><!--! Font Awesome Pro 6.4.2 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license (Commercial License) Copyright 2023 Fonticons, Inc. --><defs><style>.fa-secondary{opacity:.4}</style></defs><path class="fa-primary" d="M0 448c0-17.7 14.3-32 32-32H416c17.7 0 32 14.3 32 32s-14.3 32-32 32H32c-17.7 0-32-14.3-32-32z"/><path class="fa-secondary" d="M48 32C30.3 32 16 46.3 16 64s14.3 32 32 32H64V224c0 88.4 71.6 160 160 160s160-71.6 160-160V96h16c17.7 0 32-14.3 32-32s-14.3-32-32-32H304c-17.7 0-32 14.3-32 32s14.3 32 32 32h16V224c0 53-43 96-96 96s-96-43-96-96V96h16c17.7 0 32-14.3 32-32s-14.3-32-32-32H48z"/></svg>