Aqua is long gone for most things on macOS but in Safari is lives on, the instances are rare because web developers are working around it but sometimes they show up.
Here you can see that the "August" menu is an Aqua control element. It has the 3D look and the grandient.
Here you can see the same part of the web site with Firefox, "August" looks much more like the rest.
The web developer could probably change this but it is funny that it still exists.
The website I found this on is https://kalender.digital/ a German calendar for teams. I considered using it but missing CalDAV support made it not really interesting to use. The English version can be found here https://calendar.online/
Here you can see that the "August" menu is an Aqua control element. It has the 3D look and the grandient.
Here you can see the same part of the web site with Firefox, "August" looks much more like the rest.
The web developer could probably change this but it is funny that it still exists.
The website I found this on is https://kalender.digital/ a German calendar for teams. I considered using it but missing CalDAV support made it not really interesting to use. The English version can be found here https://calendar.online/