Add a :disabled style for radio inputs and checkboxes. Fixes #26004.

Built from https://develop.svn.wordpress.org/trunk@26170


git-svn-id: http://core.svn.wordpress.org/trunk@26079 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/css/colors-fresh.css

@@ -37,6 +37,13 @@ input[type=radio] {
 	box-shadow: inset 0px 1px 2px rgba(0,0,0,0.1);
 }
 
+input[type=checkbox]:disabled,
+input[type=radio]:disabled,
+input[type=checkbox]:disabled:checked:before,
+input[type=radio]:disabled:checked:before {
+	opacity: 0.5;
+}
+
 input[type=checkbox]:checked:before {
 	color: #1e8cbe;
 }