When a resume point is available could you highlight the resume button instead of the play button?
Sorry as explained in another post, the notion of AudioBook is not properly managed by most media providers, so Symfonium does no distinction and always keep resume points for everything.
Meaning that for 90% of the users it would highlight the button that they do not want to use.
Even if you wrongly press the play button, the resume button will point to the proper location until you pause or stop the media, leaving you time to fix the wrong click.