image-dired: Add face for flagged files

* lisp/image-dired.el (image-dired-thumb-mark): New defface.
(image-dired-thumb-update-marks): Mark flagged file with above new defface.
(image-dired-dired-file-marked-p)
(image-dired-thumb-file-marked-p): Add optional argument to be
used by 'image-dired-*-flagged-p' functions below.
(image-dired-dired-file-flagged-p)
(image-dired-thumb-file-flagged-p): New defuns.
(image-dired-thumb-mark): Improve definition with color classes.
(image-dired-thumb-visible-marks): Doc fix.

1 files changed, 6 insertions, 0 deletions

diff --git a/etc/NEWS b/etc/NEWS
index 11ff0ef7a83..5504239fe76 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -260,6 +260,12 @@ Support for the GraphicsMagick command line tool ("gm") has been
 added, and is used instead of ImageMagick when it is available.
 
 ---
+*** New face 'image-dired-thumb-flagged'.
+If 'image-dired-thumb-mark' is non-nil (the default), this face is
+used for images that are flagged for deletion in the Dired buffer
+associated with Image-Dired.
+
+---
 *** Support for bookmark.el.
 The command 'bookmark-set' (bound to 'C-x r m') is now supported in
 the thumbnail view, and will create a bookmark that opens the current