This is page contains all the information you may need to porting your code from dojo 0.4.1 to dojo 0.5.

Widget

Editor2

• To keep the core of Editor2 compact, color picker, dialog based commands (insertimage, createlink) and the FCKeditor style dropdown combo are moved into their own plugins. If your code makes use of any of those functions, just dojo.require the corresponding plugins.