Newpaper theme panel social networks: add Substack?

Hello,
I am adding up links to our social networks on our website and I would like to have the option to have a dedicated icon/entry for Substack accounts.

I am adding them through the Newspaper theme panel in the Social/Apis > Social Networks submenu, so it would be great if you could add this social media website to the list. I know I could just add the link under a different category but it would look so much nicer if there were a “correct” entry for it.

I hope you can do something about it! Thanks!