I’m currently testing the X Theme and I and reading “Customization Best Practices” and I was wondering if it’s possible to register a new completely new stack in a child theme that would be available from the Customizer and editable via Cornerstone.
Thanks for writing in! Regretfully, at this time I am not entirely certain what it is you would like to accomplish based on the information given in your post. If you wouldn’t mind providing us with a little more clarification on what it is you’re wanting to do, we’ll be happy to provide you with a response once we have a better understanding of the situation.