Re: describe-text-properties highlighting and mouseover face is broken

[Juri Linkov]

>     > There are text properties here:
>     >   face                 [font-lock-function-name-face]
>     >   fontified            t
>     >
>     > Mouseover the button [font-lock-function-name-face], which is the only
>     > hot zone, shows no highlighting. It should presumably be highlighted
>     > on mouseover.
>
>     Since this button works like a link, perhaps it should be highlighted
>     with mouse-face.
>
> Could you do that?

Buttons in the Help buffer are implemented with the `widget' package,
and I see that in wid-edit.el in `widget-specify-button' function
`mouse-face' was disabled intentionally as unnecessary when the mouse
pointer can change its shape:

      ; Text terminals cannot change mouse pointer shape, so use mouse
      ; face instead.
      (or (display-graphic-p)
          (overlay-put overlay 'mouse-face widget-mouse-face)))

-- 
Juri Linkov
http://www.jurta.org/emacs/