This feels like an Omeka S 101 question, but I don’t think I’m seeing it anywhere, either in the docs or in the forums:
How do I customize the error pages?
view/error/ in my Theme directory, copied
index.phtml in there from core, and made changes, but forcing a 404 on my site shows the old error page.
There must be more (or less) to it, but I’m not finding the right stuff.