Re: night-mode?

[Juri Linkov]

> Based on previous discussions, I think we should add some way to toggle
> the dark/light mode.  I'm not completely sure what the interface should
> look like, nor what'd be the better implementation, but see the patch
> below for a first cut to add a `night-mode` command, which does
> basically the "inverse video" by swapping the foreground and the
> background of the default face (and then resetting the background-mode
> accordingly, of course).

I've tested it with `emacs -rv`, and the effect of `night-mode`
is the same as `--reverse-video'.  But a minor problem is that
after starting Emacs with `-rv`, the first invocation of `night-mode`
has no effect.