[gnome-calendar] utils: add calendar-color-image css class to popover icons

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit a1882ff25e66f72e62d14fa9e1ffe54fa9530e59
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Fri Jul 8 16:16:19 2016 -0300

    utils: add calendar-color-image css class to popover icons

 src/gcal-utils.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/gcal-utils.c b/src/gcal-utils.c
index 47a5ee1..fee1dab 100644
--- a/src/gcal-utils.c
+++ b/src/gcal-utils.c
@@ -684,6 +684,7 @@ fix_popover_menu_icons (GtkPopover *popover)
 
           if (g_type_is_a (G_OBJECT_TYPE (button_box_child), GTK_TYPE_IMAGE))
             {
+              gtk_style_context_add_class (gtk_widget_get_style_context (button_box_child), 
"calendar-color-image");
               gtk_widget_show (button_box_child);
               break;
             }