[gnome-shell/wip/snwh/theme-refactor] Apply suggestion to data/theme/gnome-shell-sass/_drawing.scss

[Sam Hewitt <snwh src gnome org>]

commit 41759214281550f79c78dd0db47795bb99313216
Author: Sam Hewitt <sam snwh org>
Date:   Thu Jan 9 15:13:54 2020 +0000

    Apply suggestion to data/theme/gnome-shell-sass/_drawing.scss

 data/theme/gnome-shell-sass/_drawing.scss | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/data/theme/gnome-shell-sass/_drawing.scss b/data/theme/gnome-shell-sass/_drawing.scss
index 81ed22d287..2ae0b9c8ba 100644
--- a/data/theme/gnome-shell-sass/_drawing.scss
+++ b/data/theme/gnome-shell-sass/_drawing.scss
@@ -72,8 +72,8 @@
 // $bg is the background color
 //
   $lbg: lightness($bg)/100%;
-  @if lightness($tc)<50% { @return rgba(255,255,255,1-$lbg/($lbg*1.3)); }
-  @else { @return rgba(0,0,0,$lbg*0.8); }
+  @if lightness($tc)<50% { @return rgba(255,255,255,$lbg/($lbg*1.3)); }
+  @else { @return rgba(0,0,0,1-$lbg*0.8); }
 }
 
 @function draw_button_hilight_color($c) {