bug#50462: 27.2; emacsclient syntax highlight failure

[RDS]

>So it sounds like the faces lost their color definitions for some
>reason?
Yes. Something overwrote the setting returning it to default state = black.

>When this happens, and you invoke "M-x customize-face" on a
>problematic face, what does Emacs show for the color attributes of the

>face in the Customize buffer?
black.
I then entered green & voila, all was well.

On Wed, Sep 8, 2021 at 10:02 AM Eli Zaretskii <eliz@gnu.org> wrote:

> From: RDS <rds1944@gmail.com>
> Date: Wed, 8 Sep 2021 09:46:38 -0700
> Cc: Lars Ingebrigtsen <larsi@gnus.org>, 50462@debbugs.gnu.org
>
> 1) Using standard agetty, not emacs terminal.

I'm not sure I understand what this means.  What is "agetty"?  And
what do you call "emacs terminal"?

> 2) M-x list-faces-display (after fault)
> All OK except
>   font-lock-string-face (black-on-black)
>   sh-escaped-newline "
>   toolbar "
>   window-divider-last-pixel "

And what happens if you try to customize these faces to define the
colors they should have?  Or different colors?  Does that work, or do
these faces fail to display any colors, no matter what?

Btw, how many colors does this terminal support?  You can find the
answer like this:

  M-: (display-color-cells) RET

And finally, does "M-x list-colors-display RET" show some colors
incorrectly?