Oddly, the eye is not an SVG <circle>, but this path:
<path d="M12.3442 18.3034C12.3442 16.2668 13.9777 14.6194 15.997 14.6194C18.0163 14.6194 19.6497 16.2668 19.6497 18.3034C19.6497 20.34 18.0163 21.9874 15.997 21.9874C13.9777 21.9874 12.3442 20.34 12.3442 18.3034Z" fill="currentColor"></path>
@freeschool @Gargron Actually in the full #Mastodon logo, there's an eye right next to the M. I zoomed in on the Mastodon logo.