[gnome-calendar] edit-dialog: add calendar-color-image styleclass to source_image.

[Lapo Calamandrei <lapo src gnome org>]

commit 456c7a0f69d05b1618b0d1cc702dd6c9a32d31e6
Author: Lapo Calamandrei <calamandrei gmail com>
Date:   Fri Jul 8 19:12:53 2016 +0200

    edit-dialog: add calendar-color-image styleclass to source_image.

 data/ui/edit-dialog.ui |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/data/ui/edit-dialog.ui b/data/ui/edit-dialog.ui
index e52945b..e26e54a 100644
--- a/data/ui/edit-dialog.ui
+++ b/data/ui/edit-dialog.ui
@@ -52,6 +52,9 @@
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
                     <property name="valign">start</property>
+                    <style>
+                      <class name="calendar-color-image"/>
+                    </style>
                   </object>
                 </child>
                 <child>