mkdocs-material/material/.icons/fontawesome/brands/square-font-awesome.svg

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><!--! Font Awesome Free 6.3.0 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="M384.5 32.5h-320c-35.3 0-64 28.7-64 64v320c0 35.3 28.7 64 64 64h320c35.3 0 64-28.7 64-64v-320c0-35.3-28.7-64-64-64zm-48 280c-31.6 11.2-41.2 16-59.8 16-31.4 0-43.2-16-74.6-16-10.2 0-18.2 1.6-25.6 4v-32c7.4-2.2 15.4-4 25.6-4 31.2 0 43.2 16 74.6 16 10.2 0 17.8-1.4 27.8-4.6v-96c-10 3.2-17.6 4.6-27.8 4.6-31.4 0-43.2-16-74.6-16-25.4 0-37.4 10.4-57.6 14.4v153.6c0 8.8-7.2 16-16 16s-16-7.2-16-16v-192c0-8.8 7.2-16 16-16s16 7.2 16 16v6.4c20.2-4 32.2-14.4 57.6-14.4 31.2 0 43.2 16 74.6 16 18.6 0 28.2-4.8 59.8-16v160z"/></svg>