[libadwaita/wip/exalm/button-fix: 9/9] stylesheet: Fix .osd button states

[Alexander Mikhaylenko <alexm src gnome org>]

commit 198e5593a08d5ae846802d21e9cca02df5559e1b
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Wed Sep 15 13:25:26 2021 +0500

    stylesheet: Fix .osd button states
    
    Since we changed osd to use transparent black, it has become completely
    invisible on black bg, which is not uncommon on e.g. image viewers.
    
    Change background color for hover/etc instead of opacity to mitigate that.

 src/stylesheet/widgets/_buttons.scss | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)
---
diff --git a/src/stylesheet/widgets/_buttons.scss b/src/stylesheet/widgets/_buttons.scss
index 99b81f07..dd6c06db 100644
--- a/src/stylesheet/widgets/_buttons.scss
+++ b/src/stylesheet/widgets/_buttons.scss
@@ -117,25 +117,25 @@ button {
 
     &:hover {
       color: white;
-      background-color: transparentize(black, .5);
+      background-color: gtkalpha(gtkmix(black, currentColor, 85%), .65);
     }
 
     &.keyboard-activating,
     &:active {
       color: white;
-      background-color: transparentize(black, .2);
+      background-color: gtkalpha(gtkmix(black, currentColor, 75%), .65);
     }
 
     &:checked {
-      background-color: transparentize(black, .25);
+      background-color: gtkalpha(gtkmix(black, currentColor, 8%), .65);
 
       &:hover {
-        background-color: transparentize(black, .35);
+        background-color: gtkalpha(gtkmix(black, currentColor, 75%), .65);
       }
 
       &.keyboard-activating,
       &:active {
-        background-color: transparentize(black, .1);
+        background-color: gtkalpha(gtkmix(black, currentColor, 65%), .65);
       }
     }