Get the background mode from the terminal for xterm, and set

faces accordingly.
* term/xterm.el (xterm-set-background-mode): New function.
(terminal-init-xterm): Use it in case xterm supports background
color queries.  Recompute faces after getting the background
color.

1 files changed, 5 insertions, 0 deletions

diff --git a/etc/NEWS b/etc/NEWS
index c41a437ea2f..f351fe9e16e 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -339,6 +339,11 @@ That means, they change `default-directory' to the new users value,
 and let commands run under that user permissions.  It works even when
 `default-directory' is already remote.
 
+*** When running in a new enough xterm (newer than version 242), emacs
+asks xterm what the background color is and it sets up faces
+accordingly for a dark background if needed (the current default is to
+consider the background light).
+
 
 * New Modes and Packages in Emacs 23.2