[gtk/wip/jimmac/dark-variant-increase-contrast] Adwaita:dark increase contrast for text views

[Jakub Steiner <jimmac src gnome org>]

commit cad389c35b118e2d8d33e0d253db83e9d4122c67
Author: Jakub Steiner <jimmac gmail com>
Date:   Wed Mar 18 19:37:05 2020 +0100

    Adwaita:dark increase contrast for text views
    
    - address legibility concerns in Terminal globally for all text views
    
    Fixes https://gitlab.gnome.org/GNOME/gnome-terminal/issues/233

 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 bbb9029ce7..728a1c5eba 100644
--- a/gtk/theme/Adwaita/_common.scss
+++ b/gtk/theme/Adwaita/_common.scss
@@ -81,7 +81,7 @@ treeview.expander:disabled { -gtk-icon-filter: opacity(0.5); }
 .view,
 %view {
   color: $text_color;
-  background-color: $base_color;
+  background-color: if($variant=='light',$base_color,darken($base_color,4%));
 
   &:backdrop {
     color: $backdrop_text_color;