Arrow go-to-top visible oversized

[cursorius-cursor]

In a fresh venv with sphnx Sphinx==5.2.0.post0 and furo==2022.9.15 an oversized arrow is on top of many pages.
I discovered the codesnipet at page.html. Why ist this arrow so big?
<a href="#" class="back-to-top muted-link"> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"> <path d="M13 20h-2V8l-5.5 5.5-1.42-1.42L12 4.16l7.92 7.92-1.42 1.42L13 8v12z"></path> </svg> <span>{% trans %}Back to top{% endtrans %}</span> </a>

[cursorius-cursor]

Sorry, there was some old code in _static, I deleted those old parts and now everything works like clockwork.