From 14d2a48d41c79f8b7866fbcdeb74fd4b1634a248 Mon Sep 17 00:00:00 2001
From: Nazar Mokrynskyi <nazar@mokrynskyi.com>
Date: Tue, 1 Nov 2016 19:08:14 +0200
Subject: [PATCH] [Gtk-3.20] Fix for volume OSD slider. Fixes #623

Some distro (Zorin Os) uses OSD with old gnome-fallback-media-keys-helper which is a component decoupled from earlier versions of GNOME3 stack before it become monolithic. It uses theming style of Gtk-3.18.
---
 src/gtk-3.20/scss/widgets/_osd.scss | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/gtk-3.20/scss/widgets/_osd.scss b/src/gtk-3.20/scss/widgets/_osd.scss
index c79ecb1..121a55b 100644
--- a/src/gtk-3.20/scss/widgets/_osd.scss
+++ b/src/gtk-3.20/scss/widgets/_osd.scss
@@ -80,9 +80,15 @@
         entry { @include entry($osd_base, $osd_text_color, $osd_borders_color); }
 
         /* used by gnome-settings-daemon's media-keys OSD */
-        trough { background-color: shade($osd_bg, .8); }
+        trough,
+        &.trough {
+            background-color: alpha($osd_fg, .3);
+        }
 
-        progressbar { background-color: $osd_fg; }
+        progressbar,
+        &.progressbar {
+            background-color: $osd_fg;
+        }
 
         // Old GTK 3.0 code
         scale {