mkdocs-material/material/.icons/fontawesome/solid/l.svg

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><!--! Font Awesome Free 6.1.1 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2022 Fonticons, Inc.--><path d="M320 448c0 17.67-14.31 32-32 32H64c-17.69 0-32-14.33-32-32V64c0-17.66 14.31-31.99 32-31.99s32 14.33 32 32v352h192c17.7-.01 32 14.29 32 31.99z"/></svg>