Hoe verberg ik een knop (SVG-icoon) als de gebruiker is ingelogd?

[omarfilip]

You could use the .anon class and do it similar to this:

Hide Custom Header Links from anon

Until there is a cleaner way to do it via an upgrade of the component, you can add this css lines in your theme .anon .custom-header-links { display: none; }