Re: Shall we use etc/images more?

[Richard M. Stallman]

    1. Move *all* of the images from lisp, lisp/toolbar, and lisp/mail to
       etc/images.

    2. Rename any file with an underscore to one with a dash and update
       affected source files (affects MH-E, Gnus, info.el, tool-bar.el).

    3. Move the gud-* files to etc/images/gud, strip the gud- prefix, and
       update lisp/progmodes/gud.el.

    4. Move the sb-* files to etc/images/speedbar, strip the sb- prefix, and
       update lisp/speedbar.el.

    5. Because tool-bar.el will be the only file left in the lisp/toolbar
       directory, move it to lisp and delete lisp/toolbar.

These plans sound good to me.  And speedbar has just been updated,
so there is no need to wait any longer before you do this.