This must be a very amateurish question but...
I'm using page templates from the dropdown menu in page editor but I can't find their source code. I know that usually this can be found in themes/"theme name"/page-templates, but no matter how hard I look, I just can't find the files for several of the templates I'm using ("Full-Width Template", "Page with Navigation Only" etc.). Any tips?
Thanks a lot!
functions.php
file.