[gtk/fix-solid-csd] Adwaita: Reduce the solid csd borders

[Matthias Clasen <matthiasc src gnome org>]

commit d44d9ad40da3f376ec6362495500cfe0db0e90eb
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Aug 5 08:45:46 2020 -0400

    Adwaita: Reduce the solid csd borders
    
    Reduce the borders we draw ourselves for solid csd
    to 1 pixel. It still doesn't look great, but at least
    it doesn't look outright broken.
    
    Fixes: #2997

 gtk/theme/Adwaita/_common.scss | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gtk/theme/Adwaita/_common.scss b/gtk/theme/Adwaita/_common.scss
index 270784bb5d..b33455d539 100644
--- a/gtk/theme/Adwaita/_common.scss
+++ b/gtk/theme/Adwaita/_common.scss
@@ -3783,7 +3783,7 @@ window {
   &.solid-csd {
     margin: 0;
     padding: 0;
-    border: solid 14px $borders_color;
+    border: solid 1px $borders_color;
     border-radius: 0;
     box-shadow: inset 0 0 0 3px $headerbar_color, inset 0 1px $top_hilight;