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

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><!--! Font Awesome Free 6.2.1 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="M64 480h384c35.3 0 64-28.7 64-64V160c0-35.3-28.7-64-64-64H298.5c-17 0-33.3-6.7-45.3-18.7l-26.5-26.6c-12-12-28.3-18.7-45.3-18.7H64C28.7 32 0 60.7 0 96v320c0 35.3 28.7 64 64 64z"/></svg>