In “Responsive Easy Footer” you can use fab-twitter for the social media link icon of old twitter, but I did not find a way to use the new X.
It looks like it should be fab-x-twitter or fa-x-twitter, but both do not show up. I added it to “svg icon subset” and “Easy Footer / svg-icons” without success.
This is a container install of 3.3.0-beta1-dev. Do I need to rebuild the container or something like that?