Index: src/wp-admin/css/colors/_admin.scss
===================================================================
--- src/wp-admin/css/colors/_admin.scss	(revision 33371)
+++ src/wp-admin/css/colors/_admin.scss	(working copy)
@@ -100,21 +100,26 @@
 	color: $menu-bubble-background;
 }
 
-.post-com-count:hover:after {
-	border-top-color: $menu-background;
-}
-.post-com-count:hover span {
+.column-comments .comment-count-no-comments,
+.column-comments .comment-count-approved {
 	color: $menu-text;
 	background-color: $menu-background;
 }
 
-strong .post-com-count:after {
-	border-top-color: $menu-bubble-background;
+.column-comments .post-com-count-no-comments:after,
+.column-comments .post-com-count-approved:after {
+	border-top-color: $menu-background;
 }
-strong .post-com-count span {
+
+.column-comments .post-com-count-approved:hover .comment-count-approved,
+.column-comments .post-com-count-approved:focus .comment-count-approved {
 	background-color: $menu-bubble-background;
 }
 
+.column-comments .post-com-count-approved:hover:after,
+.column-comments .post-com-count-approved:focus:after {
+	border-top-color: $menu-bubble-background;
+}
 
 /* Admin Menu */