I'm trying to import SVG icons from FontAwesome for use as button bar icons in FileMaker, but I can't get them to work. I'm using FM 16 Advanced. When I try to add them to the FM button bar icon screen, they show up as empty. Here's the SVG text. Can anybody tell me what I'm doing wrong? Thanks!
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 640 512">
<g class="fm_fill">
<path d="M448,224a32,32,0,1,0,32,32A32.03667,32.03667,0,0,0,448,224ZM240,128a31.99908,31.99908,0,0,0-32-32H24A23.99993,23.99993,0,0,0,0,120v16a24.00118,24.00118,0,0,0,24,24H86.23828l55.32227,56.94922-10.79493.98047a38.22631,38.22631,0,0,0,0,76.13867l10.79688.98242L64,352H24A23.99993,23.99993,0,0,0,0,376v16a24.00118,24.00118,0,0,0,24,24H208a32,32,0,0,0,0-64H137.76172L208.25,301.11328l20.7793,1.88867a222.14594,222.14594,0,0,1,0-94.0039l-20.78125,1.88867L160,160h48A32.00033,32.00033,0,0,0,240,128ZM448,64c-106.03906,0-192,85.96094-192,192s85.96094,192,192,192,192-85.96094,192-192S554.03906,64,448,64Zm0,256a64,64,0,1,1,64-64A64.07333,64.07333,0,0,1,448,320Z"/>
</g>
</svg>