[gnome-calendar] theme: add a nice transition on the month chooser widget

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

commit 591d8af5e4c1a2d2986315443be25562befe3c04
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Mon Oct 3 19:56:42 2016 -0300

    theme: add a nice transition on the month chooser widget

 data/theme/gtk-styles.css |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)
---
diff --git a/data/theme/gtk-styles.css b/data/theme/gtk-styles.css
index 6f1ce56..89d8e9e 100644
--- a/data/theme/gtk-styles.css
+++ b/data/theme/gtk-styles.css
@@ -316,6 +316,16 @@ datechooser .weekday:backdrop {
 
 /* days */
 datechooser day {
+  transition-property: background-color;
+  transition-duration: 200ms;
+}
+
+datechooser day label {
+  transition-property: color;
+  transition-duration: 200ms;
+}
+
+datechooser day {
   min-height: 32px;
   min-width: 32px;
   border-radius: 50%;