[gnome-builder] style: fix style for realtime graphs

[Christian Hergert <chergert src gnome org>]

commit beaf0487f39085ebb55ed82ab8ad2c69e6121ee5
Author: Christian Hergert <chergert redhat com>
Date:   Mon Feb 15 21:40:02 2016 -0800

    style: fix style for realtime graphs

 contrib/rg/rg-graph.c                 |    2 ++
 plugins/sysmon/theme/Adwaita-dark.css |    2 +-
 plugins/sysmon/theme/Adwaita.css      |    2 +-
 3 files changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/contrib/rg/rg-graph.c b/contrib/rg/rg-graph.c
index efd097f..7176d39 100644
--- a/contrib/rg/rg-graph.c
+++ b/contrib/rg/rg-graph.c
@@ -375,6 +375,8 @@ rg_graph_class_init (RgGraphClass *klass)
                          (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
 
   g_object_class_install_properties (object_class, LAST_PROP, properties);
+
+  gtk_widget_class_set_css_name (widget_class, "rggraph");
 }
 
 static void
diff --git a/plugins/sysmon/theme/Adwaita-dark.css b/plugins/sysmon/theme/Adwaita-dark.css
index ea07391..f5da6d1 100644
--- a/plugins/sysmon/theme/Adwaita-dark.css
+++ b/plugins/sysmon/theme/Adwaita-dark.css
@@ -1,4 +1,4 @@
-RgGraph {
+rggraph {
   background-color: #2e3436;
   background-size: 8px 8px;
   background-image: repeating-linear-gradient(0deg, #32383a, #32383a 1px, transparent 1px, transparent 8px),
diff --git a/plugins/sysmon/theme/Adwaita.css b/plugins/sysmon/theme/Adwaita.css
index 09e6241..93a2319 100644
--- a/plugins/sysmon/theme/Adwaita.css
+++ b/plugins/sysmon/theme/Adwaita.css
@@ -1,4 +1,4 @@
-RgGraph {
+rggraph {
   background-color: #f6f7f8;
   background-size: 8px 8px;
   background-image: repeating-linear-gradient(0deg, #f0f1f2, #f0f1f2 1px, transparent 1px, transparent 8px),