Request: add notes for hex editor

In the hex editor, could it be possible to be able to right click a address or selected addressses to have the option to add a note, then give the noted addresses a highlight color like a frozen address, but a different color (maybe red?), and then hovering over a noted address will show the note when you hover over a link in a web browser. It would make discoveries easier as the ram values and notes are right there. L. Spyro's MHS has a similar feature where it lets you color code addresses, but not attach a note.

Start by locating BizHawk's hex editor entry point and the existing frozen-address highlighting behavior. Trace how address selection, context menus, and hover information are handled. Done means selected addresses can receive notes, noted addresses have a distinct highlight, and hovering displays the note.