Filename: //usr/share/icons/Adwaita//scalable/status/user-busy-symbolic.svg

<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16"><path d="M3.5 1A2.495 2.495 0 001 3.5v5C1 9.885 2.115 11 3.5 11h6.375L13 15v-4.063A2.486 2.486 0 0015 8.5v-5C15 2.115 13.885 1 12.5 1zM5 5h6v2H5z" fill="#474747"/></svg>

./Ninja\.