bug#27973: [PATCH] Add ability to change macOS WM theme (bug#27973)

[Eli Zaretskii]

> Date: Sun, 20 Aug 2017 14:42:01 +0100
> From: Alan Third <alan@idiocy.org>
> Cc: james@jojojames.com, 27973@debbugs.gnu.org
> 
> +@vindex ns-appearance, a frame parameter
> +@item ns-appearance
> +Only available on macOS, if set to @code{dark} draw this frame's
> +window-system window using the `vibrant dark' theme, otherwise use the
                                  ^^^^^^^^^^^^^^
Please quote ``like this'' in Texinfo sources, this produces a much
better output.  Alternatively, you could use @samp{vibrant dark} instead.

> +@vindex ns-transparent-titlebar, a frame parameter
> +@item ns-transparent-titlebar
> +Only available on macOS, if non-@code{nil}, set the titlebar and
> +toolbar to be `transparent'.  This effectively sets the background
                 ^^^^^^^^^^^^^
I don't think you need any quoting here, as "transparent" is used here
in its literal sense, right?

Thanks.