Ok so I managed to sort it. I had already cleared the cache but what I hadn’t done was uninstalled the plug-in again then ran WP-Optimise to clean up the orphans through the database that have been created. I did that, then reinstalled the plug in. The ‘newspaper_custom’ wasn’t removed so it didn’t actually put me back to square one but it did resolve the issues that custom theme created and removed the duplicate ‘newspaper_custom’ entries.
So not 100% right for anyone else but between that and adding the below to the custom css in the script section I think I have something workable right now. Or atleast workable enough to see if this is something that will suit our needs, which was the point.
Ill leave it with you to add something to the roadmap about this or not. But I have a workaround for now.