[sysprof] ticks: tweak background style for ticks

[Christian Hergert <chergert src gnome org>]

commit 6295b288160d9310b358486ea3c2c6fffff8839a
Author: Christian Hergert <chergert redhat com>
Date:   Thu Aug 1 00:30:16 2019 -0700

    ticks: tweak background style for ticks

 src/libsysprof-ui/css/SysprofDisplay-shared.css | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/libsysprof-ui/css/SysprofDisplay-shared.css b/src/libsysprof-ui/css/SysprofDisplay-shared.css
index 483b42a..d7d27f1 100644
--- a/src/libsysprof-ui/css/SysprofDisplay-shared.css
+++ b/src/libsysprof-ui/css/SysprofDisplay-shared.css
@@ -53,7 +53,7 @@ SysprofVisualizersFrame scrollbar.horizontal contents trough slider {
 
 SysprofVisualizerTicks {
   color: mix(@theme_fg_color, @borders, 0.5);
-  background-color: @theme_bg_color;
+  background-color: @content_view_bg;
   }
 
 SysprofVisualizersFrame list {