Allow minibuffer prompts to use faces

* doc/lispref/minibuf.texi (Text from Minibuffer): Document
`minibuffer-prompt-properties' and explain how faces work in
the minibuffer prompt.

* src/minibuf.c (read_minibuf): If `face' is in
`minibuffer-prompt-properties', apply it to the end of the
face list to allow users to have their own faces on the
prompts (bug#16136).

1 files changed, 6 insertions, 0 deletions

diff --git a/etc/NEWS b/etc/NEWS
index ed4810b2982..cf360a329a2 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -57,6 +57,12 @@ affected by this, as SGI stopped supporting IRIX in December 2013.
 * Changes in Emacs 25.2
 
 +++
+** Faces in `minibuffer-prompt-properties' no longer overwrite properties
+in the text in functions like `read-from-minibuffer', but instead are
+added to the end of the face list.  This allows users to say things
+like `(read-from-minibuffer (propertize "Enter something: " 'face 'bold))'.
+
++++
 ** The new variable `extended-command-suggest-shorter' has been added
 to control whether to suggest shorter `M-x' commands or not.