[gnome-shell-sass] accessibility: Add pointer accessibility support

[Florian Müllner <fmuellner src gnome org>]

commit 73d7993c8eb7e225f09630c8e40b6266013c2f1f
Author: Olivier Fourdan <ofourdan redhat com>
Date:   Wed Mar 20 17:46:12 2019 +0100

    accessibility: Add pointer accessibility support
    
    Adds the UI part for the pointer accessibility features.
    
    The various timeouts running are notified using a pie-timer showing
    under the pointer.
    
    For dwell-click type selection, we use a drop-down menu. Users can
    use the dwell-click to select the next type of dwell click to be
    emitted.
    
    https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/474

 _common.scss | 9 +++++++++
 1 file changed, 9 insertions(+)
---
diff --git a/_common.scss b/_common.scss
index c8c53d5..50bfc66 100644
--- a/_common.scss
+++ b/_common.scss
@@ -1195,6 +1195,15 @@ StScrollBar {
   }
 }
 
+// Pointer accessibility notifications
+.pie-timer {
+  width: 60px;
+  height: 60px;
+  -pie-border-width: 3px;
+  -pie-border-color: $selected_bg_color;
+  -pie-background-color: lighten(transparentize($selected_bg_color, 0.7), 40%);
+}
+
 /* NETWORK DIALOGS */
 
 .nm-dialog {