Darken comment reply text area

services/web/public/stylesheets/app/editor/review-panel.less

@@ -394,6 +394,7 @@
 		border-radius: 3px;
 		border: solid 1px @rp-border-grey;
 		resize: vertical;
+		color: @rp-type-darkgrey;
 	}
 
 .rp-icon-delete {