Re: Display of undisplayable characters: \U01F3A8 instead of diamond

[Eli Zaretskii]

> Date: Fri, 02 Sep 2022 16:56:55 +0000
> From: Gregory Heytings <gregory@heytings.org>
> cc: Eli Zaretskii <eliz@gnu.org>, acm@muc.de, rms@gnu.org, emacs-devel@gnu.org
> 
> >> infocmp tells me that there are 8 colors.  So it's likely some kind of 
> >> bug in Emacs, I guess.
> >
> > Unless you have overridden the color mode with the tty-color-mode frame 
> > parameter.
> 
> I didn't, I just started emacs -Q.

Is the "RGB" variable set in the environment?

More generally, can you step through the code in init_tty that
computes the TN_max_colors terminal parameter, and see why we set it
to 16777216?