[sysprof/wip/visualizers] visualizer-ticks: adjust ticks opacity

[Christian Hergert <chergert src gnome org>]

commit 5a5bf1900f3f46ba0f06a587030b48bd24b502d1
Author: Christian Hergert <chergert redhat com>
Date:   Tue Sep 27 18:32:13 2016 -0700

    visualizer-ticks: adjust ticks opacity
    
    We can lighten the ticks a bit here and still be theme agnostic.

 src/resources/theme/shared.css |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/src/resources/theme/shared.css b/src/resources/theme/shared.css
index c2b807d..b17bb15 100644
--- a/src/resources/theme/shared.css
+++ b/src/resources/theme/shared.css
@@ -24,3 +24,7 @@ list.visualizers row:backdrop,
 list.visualizers row:last-child {
   border-bottom: none;
 }
+
+ticks {
+  color: alpha(@theme_fg_color, 0.4);
+}