Thank for your help, bcworkz! The arrays seems to have done the trick, as far as I can tell. I’m aware of the likelihood of difficulties with themes, but at the moment this plugin is mostly practice/me testing to see what WordPress can do, so I’m not incredibly worried about that (yet). I’ll look into handling the changes via javascript, though ??
Would an array be the solution for querying/identifying the tags on a post page and activating the changes to the backgrounds? WordPress seems to have the ability to do that (via get_the_tags) but when I try it, the array comes back as null, despite echoing out fine on the admin page.
