[gnome-shell-sass] style: Neutral style for hotcorner ripple

[Florian Müllner <fmuellner src gnome org>]

commit 08b1d80b323526e53bd0a60a617b0033e2952fc0
Author: Sam Hewitt <sam snwh org>
Date:   Fri May 27 13:25:32 2022 -0230

    style: Neutral style for hotcorner ripple
    
    - fixes #5443
    
    Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2309>

 widgets/_corner-ripple.scss | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/widgets/_corner-ripple.scss b/widgets/_corner-ripple.scss
index 9137b67..9aff431 100644
--- a/widgets/_corner-ripple.scss
+++ b/widgets/_corner-ripple.scss
@@ -3,8 +3,8 @@
 $ripple_size: 50px;
 
 .ripple-box {
-  background-color: lighten(transparentize($selected_bg_color, 0.7), 40%);
-  box-shadow: 0 0 2px 2px lighten($selected_bg_color, 20%);
+  background-color: rgba(255,255,255,0.2);
+  box-shadow: 0 0 2px 2px rgba(255,255,255,0.2);
   // plus + 2px for the border (box-shadow)
   width: $ripple_size + 2px;
   height: $ripple_size + 2px;