* lisp/vc/vc-annotate.el (vc-annotate-background-mode): New defcustom.

(vc-annotate-color-map): Use less saturated colors (20%) for
background-mode.
(vc-annotate-very-old-color): Add default value for background-mode.
(vc-annotate-background): Set default value to nil since now text on
the default backgrounds should be legible in light and dark modes.
(vc-annotate-lines): Use `vc-annotate-background-mode'.  Doc fix.

Fixes: debbugs:17808

1 files changed, 6 insertions, 0 deletions

diff --git a/etc/NEWS b/etc/NEWS
index e8440d1ba4d..58cefb3a0d4 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -115,6 +115,12 @@ protocols as well as for "telnet" and "ftp" are passed to Tramp.
 
 *** New connection method "nc", which allows to access dumb busyboxes.
 
+** VC and related modes
+
+*** New option `vc-annotate-background-mode' controls whether
+the color range from `vc-annotate-color-map' is applied to the
+background or to the foreground.
+
 ** Calculator: decimal display mode uses "," groups, so it's more
 fitting for use in money calculations; factorial works with
 non-integer inputs.