Problem/Motivation
In #2994699-71: Create a CKEditor plugin to select and embed a media item from the Media Library, @webchick said:
It would be good when we know what the final icon [for the CKEditor media library button] will be ... by default, people are going to end up with two buttons that do almost the same thing, at least until their site administrator has configured some stuff differently. (If we don't already, we should maybe spin off a follow-up to talk about what we want the upgrade path to be here, esp. once Media Library is part of Standard profile.)
This is that follow-up.
Proposed resolution
Figure out how to make it easy for site builders to set up their CKEditor-aware text formats so that the existing Image button can either peacefully coexist with the new Media Library button added by #2994699: Create a CKEditor plugin to select and embed a media item from the Media Library, or be replaced by it.
Remaining tasks
TBD
User interface changes
TBD
API changes
TBD
Data model changes
TBD
Release notes snippet
TBD