Better documentation.

1 files changed, 4 insertions, 2 deletions

diff --git a/lisp/toolbar/tool-bar.el b/lisp/toolbar/tool-bar.el
index 7ded78b80e1..27706f0d725 100644
--- a/lisp/toolbar/tool-bar.el
+++ b/lisp/toolbar/tool-bar.el
@@ -96,7 +96,8 @@ PROPS are additional items to add to the menu item specification.  See
 Info node `(elisp)Tool Bar'.  Items are added from left to right.
 
 ICON is the base name of a file containing the image to use.  The
-function will first try to use ICON.xpm, then ICON.pbm, and finally
+function will first try to use ICON-locol.xpm if display-color-cells
+is less or equal to 256, then ICON.xpm, then ICON.pbm, and finally
 ICON.xbm, using `find-image'.
 
 Use this function only to make bindings in the global value of `tool-bar-map'.
@@ -112,7 +113,8 @@ PROPS are additional items to add to the menu item specification.  See
 Info node `(elisp)Tool Bar'.  Items are added from left to right.
 
 ICON is the base name of a file containing the image to use.  The
-function will first try to use ICON.xpm, then ICON.pbm, and finally
+function will first try to use ICON-locol.xpm if display-color-cells
+is less or equal to 256, then ICON.xpm, then ICON.pbm, and finally
 ICON.xbm, using `find-image'."
   (let* ((fg (face-attribute 'tool-bar :foreground))
          (bg (face-attribute 'tool-bar :background))