Re: vc-set-mode-line-busy-indicator

[Juri Linkov <juri@jurta.org>]

>  > If it's just bold and no other colors, then it's not a good idea.  For
>  > some fonts the bold form is not easy to distinguish from the normal
>  > one.  More, bold is hard to see with the peripheral vision, so changes
>  > in the mode-line are harder to observe.
>
> For now, I suggest we just go with Juri's idea.  I'm sure it's no good for
> users with tunnel vision and without bold fonts, but it seems an improvement
> and probably covers most users.
>
> Later, if the need arises, someone can build a framework of faces that
> work on the mode-line.

Please note that my opinion was mostly about the face name:
in typography emphasis is usually achieved by bold (and italic).
If the need for more strong indication arises then a better
name for the face with stronger colors would be `mode-line-warning'.

Since now Richard argued even for using no mode line indication at all,
bold doesn't seem too bad.  It is not strong and still helps to notice
the status of the vc command.

For fonts that don't support bold we could use the defface's keyword
`supports' to detect this and use a fallback definition.

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