[gtksourceview] Adwaita.xml: remove alpha from map-overlay

[Christian Hergert <chergert src gnome org>]

commit 1371b3908b4c7419ac58bc8d81bde98e58ac7a70
Author: Christian Hergert <chergert redhat com>
Date:   Thu Oct 14 16:34:26 2021 -0700

    Adwaita.xml: remove alpha from map-overlay
    
    We don't need this, as it is applied when generating the CSS for the map.

 data/styles/Adwaita.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/data/styles/Adwaita.xml b/data/styles/Adwaita.xml
index c4bd41b3..a0160909 100644
--- a/data/styles/Adwaita.xml
+++ b/data/styles/Adwaita.xml
@@ -69,7 +69,7 @@
 
   <!-- Global Settings -->
   <style name="text"                        foreground="dark2" background="light1"/>
-  <style name="map-overlay"                 background="#rgba(46,52,54,.3)"/>
+  <style name="map-overlay"                 background="#2e3436"/>
   <style name="cursor"                      foreground="dark2"/>
   <style name="line-numbers"                foreground="light4" background="light1"/>
   <style name="current-line"                background="light2"/>