[gnome-builder] style-scheme: fix line number background color for current line

[Christian Hergert <chergert src gnome org>]

commit c78675eda64a311d97f5c66f3e40b2ce1e1f201b
Author: Christian Hergert <chergert redhat com>
Date:   Thu Jan 18 19:11:13 2018 -0800

    style-scheme: fix line number background color for current line
    
    This broke during various updates to the style scheme for 3.28.

 data/style-schemes/builder-dark.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/data/style-schemes/builder-dark.xml b/data/style-schemes/builder-dark.xml
index 6805b8832..5e7867865 100644
--- a/data/style-schemes/builder-dark.xml
+++ b/data/style-schemes/builder-dark.xml
@@ -68,7 +68,7 @@
   <style name="selection"                   foreground="aluminium1" background="aluminium4"/>
   <style name="cursor"                      foreground="aluminium2"/>
   <style name="current-line"                background="dark2"/>
-  <style name="current-line-number"         background="dark1"/>
+  <style name="current-line-number"         background="dark2"/>
   <style name="line-numbers"                foreground="dark3" background="dark1"/>
   <style name="draw-spaces"                 foreground="dark3"/>
   <style name="background-pattern"          background="dark2"/>