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

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><!--! Font Awesome Free 6.4.2 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 2023 Fonticons, Inc.--><path d="M50.7 58.5 0 160h208V32H93.7c-18.2 0-34.8 10.3-43 26.5zM240 160h208L397.3 58.5c-8.2-16.2-24.8-26.5-43-26.5H240v128zm208 32H0v224c0 35.3 28.7 64 64 64h320c35.3 0 64-28.7 64-64V192z"/></svg>