Allow multiple custom CSS stylesheets per view
At the Digital Theological Library, we have multiple campuses, each of which has its own view. All of the views use the same basic custom design, but each one needs its own specific CSS tweaks. Maintaining this would be much simpler if all of the views could have two custom CSS files: one with the basic design rules and one with the specific design tweaks. That way, when the base design is updated, the view-specific CSS can't accidentally be disturbed by copying and pasting within a single stylesheet, and Primo UI managers like me won't need to copy and paste across all of our views in the first place. The view-specific stylesheet would need to be listed after the main CSS in the <head> of the page to avoid incorrect cascading.
Another option that would be even easier to use from my perspective but would probably be harder to implement would be to have a set of system-wide view styles that could then be overridden with individual custom.css stylesheets. Either solution would greatly improve my workflow for maintaining multiple views and would also benefit other Primo institutions with multiple campuses or customized views.