Hide publish button when list is fully published

I’d like to suggest a change to how the publish button is displayed in the Talis Aspire reading lists. Currently the publish button remains highlighted at all times, which makes it unclear whether something has actually been published. Would it be possible to adjust this so that the button only becomes highlighted when an unpublished change is present on the list?

The button is currently more prominent than the status of the list, it makes you think you haven't published it. This means users are clicking the publish button unnecessarily.