app/assets/images/z-external-link_icons.svg
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" viewBox="-10 0 70 50">
<path fill="#6A6A6A"
d="M39 26v9q0 3 -2 5.5t-6 2.5h-23q-3 0 -5.5 -2.5t-2.5 -5.5v-23q0 -4 2.5 -6t5.5 -2h20v3h-20q-2 0 -3 1.5t-1 3.5v23q0 2 1 3t3 1h23q2 0 3.5 -1t1.5 -3v-10h3v1zM50 2v14l-1 1l-1 1l-1 -1l-5 -5l-19 19l-4 -4l19 -19l-5 -5l-1 -1l1 -1l1 -1h14l1 1z" />
</svg>