It is a "Request to public network", tuned into a service. You can see the same in below help page,
Terracotta.org has a nice color icon, you see?
I was hoping it was the icon from the web page,
Is it possible in the meantime to add custom icons to services created from "Request to public network"? We make heavy use of this feature and end up with a lot of services all having the default globe icon:
For UX reasons it would be much better to have the ability to define custom icons.