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bug#34606: Emacs colors are off in screen sessions
From: |
Clément Pit-Claudel |
Subject: |
bug#34606: Emacs colors are off in screen sessions |
Date: |
Thu, 21 Feb 2019 11:37:25 -0500 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.4.0 |
On 21/02/2019 10.20, Eli Zaretskii wrote:
>> From: Clément Pit-Claudel <cpitclaudel@gmail.com>
>> Date: Thu, 21 Feb 2019 09:56:18 -0500
>>
>> Is this all as expected? Why does changing to xterm-256color yield
>> different results with or without ncurses-term? If I understand correctly,
>> the reason why TERM changes after I install ncurses-term is that this
>> package provides the screen.xterm-256color termcap entry, and then screen
>> acts as documented:
>>
>> When screen tries to figure out a terminal name for itself, it first
>> looks for an entry named "screen.<term>",
>> where <term> is the contents of your $TERM variable. If no such
>> entry exists, screen tries "screen" (…)
>>
>> Is there anything that Emacs could do differently to make things smoother?
>> In particular, could TERM=screen.xterm-256color behave the same as
>> TERM=screen-256color?
>
> Emacs on a TTY doesn't control the colors in RGB terms, it just tells
> the terminal to display color number N. What you actually see as
> result is up to the terminfo entry and the terminal emulator, AFAIK
> mostly the latter. So I'd suggest to dig into 'screen's
> customizations to see how to affect the colors (I customized the
> colors of PuTTY to get something I like, for example).
I don't understand. If that is the case, how can changing the value of the TERM
environment variable change the colors displayed by emacs?