[libadwaita/wip/exalm/card: 25/27] stylesheet: Fix a typo in button.osd:checked style

[Alexander Mikhaylenko <alexm src gnome org>]

commit 689b585f02aa5efa0aa8882ce46f847c3462f439
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Fri Oct 22 04:21:42 2021 +0500

    stylesheet: Fix a typo in button.osd:checked style

 src/stylesheet/widgets/_buttons.scss | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/stylesheet/widgets/_buttons.scss b/src/stylesheet/widgets/_buttons.scss
index 38244538..0e41c27b 100644
--- a/src/stylesheet/widgets/_buttons.scss
+++ b/src/stylesheet/widgets/_buttons.scss
@@ -129,7 +129,7 @@ button {
     }
 
     &:checked {
-      background-color: gtkalpha(gtkmix(black, currentColor, 8%), .65);
+      background-color: gtkalpha(gtkmix(black, currentColor, 80%), .65);
 
       &:hover {
         background-color: gtkalpha(gtkmix(black, currentColor, 75%), .65);