[gtk+] Add some doc details

[Matthias Clasen <matthiasc src gnome org>]

commit df78c9ee66999f235e3ca267ac638abab6602cb4
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Jan 13 21:37:33 2011 -0500

    Add some doc details
    
    Mention symbolic color names in gtk_icon_info_load_symbolic_for_context()

 gtk/gtkicontheme.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkicontheme.c b/gtk/gtkicontheme.c
index a163c9c..7a32269 100644
--- a/gtk/gtkicontheme.c
+++ b/gtk/gtkicontheme.c
@@ -3254,6 +3254,9 @@ gtk_icon_info_load_symbolic (GtkIconInfo  *icon_info,
  * Loads an icon, modifying it to match the system colors for the foreground,
  * success, warning and error colors provided. If the icon is not a symbolic
  * one, the function will return the result from gtk_icon_info_load_icon().
+ * This function uses the regular foreground color and the symbolic colors
+ * with the names "success_color", "warning_color" and "error_color" from
+ * the context.
  *
  * This allows loading symbolic icons that will match the system theme.
  *