[libadwaita/wip/exalm/check-focus] stylesheet: Tweak check focus

[Alexander Mikhaylenko <alexm src gnome org>]

commit 73c8d33fde145dd23185fa2f6a5cec96744567c5
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Sun Dec 5 22:33:39 2021 +0500

    stylesheet: Tweak check focus
    
    Add padding for standalone checks, adjust border-radius to match the check.

 src/stylesheet/widgets/_checks.scss | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/src/stylesheet/widgets/_checks.scss b/src/stylesheet/widgets/_checks.scss
index 262602c3..48daec11 100644
--- a/src/stylesheet/widgets/_checks.scss
+++ b/src/stylesheet/widgets/_checks.scss
@@ -1,7 +1,8 @@
 checkbutton {
   border-spacing: 4px;
-  border-radius: $button_radius;
+  border-radius: $button_radius + 3px;
   transition: $focus_transition;
+  padding: 3px;
 
   @include focus-ring();