(frame-background-mode): New variable.

diff --git a/poe.el b/poe.el
index a8f247c..3fdc151 100644 (file)
--- a/poe.el
+++ b/poe.el
@@ -230,6 +230,13 @@ Both SYMBOL and SPEC are unevaluated. The SPEC can be 0, t, a symbol
   (cons 'if (cons cond (cons nil body))))
 ;; (def-edebug-spec unless (&rest form))
 
+(defvar-maybe frame-background-mode nil
+  "*The brightness of the background.
+Set this to the symbol dark if your background color is dark, light if
+your background is light, or nil (default) if you want Emacs to
+examine the brightness for you.  However, the old Emacsen might not
+examine the brightness, so you should set this value definitely.")
+
 
 ;;; @ Emacs 19.23 emulation
 ;;;