[gtk/wip/jimmac/dnd-green] Adwaita: update tango color for DND

[Jakub Steiner <jimmac src gnome org>]

commit d1a68ac7ba0a819c641c1566ef3c2fcfaeaef76e
Author: Jakub Steiner <jimmac gmail com>
Date:   Tue Sep 15 12:18:55 2020 +0200

    Adwaita: update tango color for DND
    
    Fixes https://gitlab.gnome.org/GNOME/gtk/-/issues/3158

 gtk/theme/Adwaita/_colors.scss | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gtk/theme/Adwaita/_colors.scss b/gtk/theme/Adwaita/_colors.scss
index d58d0b6335..1fd61f000e 100644
--- a/gtk/theme/Adwaita/_colors.scss
+++ b/gtk/theme/Adwaita/_colors.scss
@@ -44,7 +44,7 @@ $base_hover_color: transparentize($fg_color, 0.95);
 $tooltip_borders_color: transparentize(white, 0.9);
 $shadow_color: transparentize(black, 0.9);
 
-$drop_target_color: #4e9a06;
+$drop_target_color: if($variant == 'light', #2ec27e, #26a269);
 
 //insensitive state derived colors
 $insensitive_fg_color: mix($fg_color, $bg_color, 50%);