I’m sorry for creating another topic, but I remember Mr. Papa explaining that plugin icons can now be stored in sp_resources/forum-themes/THEME/styles/images to prevent the plugin updates from overwriting the custom icons. I believe he also stated that the above location would be checked prior to the plugin image folders to display the icons.
I’ve searched and checked all threads I’ve participated in and can’t find the reference.
Anyway, I do so with my custom icons for the plugins and today’s Admin Bar plugin update did not function that way. The old default icons have returned.