Great start!

This seems to be quite a start at a great instant messaging system!

My only issues are there is an issue when using the built-in theme customizer, there should be some way to limit the list (if you have more than say 10-15 users the list can be in the way. Maybe only show users who are online.

And for some reason the admin shows offline.

Good luck! If you need any debug info or anything let me know, my site is up at http://www.fortytilfive.us and I would love to better integrate this plugin.

https://ww.wp.xz.cn/plugins/wp-ajax-user-chat/