Re: collapsed thread indicator change?

[Ted Zlatanov <tzz@northernlight.com>]

Martin Kretzschmar <Martin.Kretzschmar@inf.tu-dresden.de> writes:

> With Emacs 21 you can have display-margins. That is, you can leave
> some columns empty at the left or at the right. Then, your normal text
> can have some text or image assigned to display in that margin.
>
> Eval this in the scratch buffer to see how it in action. (Warning,
> manual elisp mail worm <g>)
>
> (require 'time)  ;; to get an example icon
> (setq left-margin-width 2)
> ;; Now C-x b to this buffer! See the new margin.
> (insert (propertize "Bla" 'display `((margin left-margin) 
>                                      ,display-time-mail-icon)))

That looks interesting.  The icon only showed up after I switched to
another buffer and then back to the scratch buffer, though.  I'm not
sure if that's expected Emacs 21 behavior.

Thanks
Ted