Display a nice icon on jstree if item is free

src/styles/plugins/_jstree.sass

@@ -20,6 +20,24 @@ $tree-color-highlight-background-text: white
 		+media-xs
 			width: 100%
 
+		&[is_free='true']
+			.jstree-anchor
+				padding-right: 20px
+				&:before
+					font-family: 'pillar-font'
+					content: '\e84e'
+					color: $color-success
+					font-size: .8em
+					padding: 0 5px
+					position: absolute
+					right: 5px
+
+				&.jstree-clicked
+					padding-right: 30px
+					&:before
+						color: $tree-color-highlight-background-text !important
+						right: 15px
+
 		&[data-node-type="page"],
 		&[data-node-type="blog"]
 			font-size: 1.15em