I would love to know how to create a derivative theme off of an existing (and modified) theme - and not just a child theme. I want this to be a standalone theme, to avoid updates to the parent theme.
I have made a number of modifications to the original before realizing I should have made a child theme. But I modified a number of files, and would like to now unlink it from the parent theme and make it standalone.
Any help would be much appreciated.
PS: this 'new' theme would only be for personal use, not to be redistributed.