Ticket #27759: 27759.diff

src/wp-admin/css/colors/_mixins.scss

@@ -25 +25 @@
 
         &[disabled],
         &:disabled,
-        &.button-primary-disabled {
+        &.button-primary-disabled,
+        &.disabled {
                 color: hsl( hue( $button-color ), 10%, 80% ) !important;
                 background: darken( $button-color, 8% ) !important;
                 border-color: darken( $button-color, 15% ) !important;