How can I miss his stuff :'(

Author: David-Mulder

paper-datatable.html

@@ -223,7 +223,7 @@
 			.partialSelection{
 				width:6px;
 				height:2px;
-				background: var(--paper-datatable-header-checkbox-color, rgba(0,0,0,.54));
+				background: var(--paper-datatable-header-checkbox-border-color, rgba(0,0,0,.54));
 				border-radius:1px;
 				transition: transform .1s linear;
 				transform: scale(0) rotate(-45deg);