[gnome-music/cherry-pick-268b6dbe] data: Fix treeview darkmode CSS

[Marinus Schraal <mschraal src gnome org>]

commit 6c0aa43a8527a3522e38b7be5c6a3edfa46f720f
Author: Marinus Schraal <mschraal gnome org>
Date:   Tue Sep 18 11:55:22 2018 +0000

    data: Fix treeview darkmode CSS
    
    The selected song was always rendered in black, use the theme foreground
    color instead.
    
    
    (cherry picked from commit 268b6dbe8c2d403684234d5ce681d45a4083d865)

 data/application.css | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/data/application.css b/data/application.css
index 528fe975..b1134c66 100644
--- a/data/application.css
+++ b/data/application.css
@@ -71,7 +71,7 @@ box#ArtistAlbumsWidget .artist-label {
 }
 
 .songs-list:selected {
-    color: shade(@theme_fg_color, 0.0);
+    color: @theme_fg_color;
     border-color: mix(@theme_fg_color, @theme_bg_color, 0.5);
 }