[gnome-shell-sass] theme: Replace calendar arrow images with symbolic icons and CSS

[Florian Müllner <fmuellner src gnome org>]

commit c33ed6618c3553ac91080ee5ff1cfa3dac08487c
Author: daniruiz <daniruizdealegria gmail com>
Date:   Tue Nov 20 17:55:31 2018 +0100

    theme: Replace calendar arrow images with symbolic icons and CSS
    
    https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/301

 _common.scss | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)
---
diff --git a/_common.scss b/_common.scss
index 5282021..22f9e82 100644
--- a/_common.scss
+++ b/_common.scss
@@ -938,7 +938,6 @@ StScrollBar {
     }
 
     .pager-button {
-      color: white;
       background-color: transparent;
       width: 32px;
       border-radius: 4px;
@@ -946,13 +945,8 @@ StScrollBar {
       &:active { background-color: transparentize($bg_color,0.95); }
     }
 
-      .calendar-change-month-back { //arrow back
-        background-image: url("resource:///org/gnome/shell/theme/calendar-arrow-left.svg");
-        &:rtl { background-image: url("resource:///org/gnome/shell/theme/calendar-arrow-right.svg"); }
-      }
-      .calendar-change-month-forward { //arrow foreward
-        background-image: url("resource:///org/gnome/shell/theme/calendar-arrow-right.svg");
-        &:rtl { background-image: url("resource:///org/gnome/shell/theme/calendar-arrow-left.svg"); }
+      .calendar-change-month-back StIcon, .calendar-change-month-forward StIcon { // arrows
+        icon-size: 1.09em;
       }
 
     .calendar-day-base {