emacs-27 1279bdb: Another clarification of left/right-fringe display spec

[Eli Zaretskii]

branch: emacs-27
commit 1279bdb072786d41d25eb968f894764ba2573ede
Author: Eli Zaretskii <eliz@gnu.org>
Commit: Eli Zaretskii <eliz@gnu.org>

    Another clarification of left/right-fringe display spec
    
    * doc/lispref/display.texi (Fringe Bitmaps): More accurate
    description of what FACE means in the left/right-fringe display
    spec.
---
 doc/lispref/display.texi | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/doc/lispref/display.texi b/doc/lispref/display.texi
index 19e0fdf..ecb9cff 100644
--- a/doc/lispref/display.texi
+++ b/doc/lispref/display.texi
@@ -4278,9 +4278,11 @@ a display specification has the form
 @var{fringe} is either the symbol @code{left-fringe} or
 @code{right-fringe}.  @var{bitmap} is a symbol identifying the bitmap
 to display.  The optional @var{face} names a face whose foreground and
-background colors are to be used to display the bitmap; this face is
-automatically merged with the @code{fringe} face.  If @var{face} is
-omitted, that means to use the @code{default} face.
+background colors are to be used to display the bitmap, using the
+attributes of the @code{fringe} face for colors that @var{face} didn't
+specify.  If @var{face} is omitted, that means to use the attributes
+of the @code{default} face for the colors which the @code{fringe} face
+didn't specify.
 
   For instance, to display an arrow in the left fringe, using the
 @code{warning} face, you could say something like: