SVG inline

Simply copy/paste this into your HTML:

<svg class="humbleicons hi-brand-twitter" xmlns="http://www.w3.org/2000/svg" width="24" height="24" fill="none" viewBox="0 0 24 24"><path stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="m20.5 4.5-2 1.5M21 7h-2M3.5 18c11.5 4.5 17-7 15-11s-7-1.5-5.5 3c-3.5 0-7-1-9-3.5-1 3.5.5 8 4 9.5-1.065 1.352-1.795 1.703-4.5 2Z"/></svg>

SVG sprite

Download the sprite file and address the icon by its slug:

<svg class="humbleicons"><use xlink:href="humbleicons.svg#brand-twitter"/></svg>