Initial commit

public/theme/extensions/_tree.scss

@@ -0,0 +1,15 @@
+.p-tree {
+    .p-tree-container {
+        .p-treenode {
+            outline: 0 none;
+            
+            &:focus > .p-treenode-content {
+                background: $emphasis-lower;
+
+                &.p-highlight {
+                    background: rgba($primaryColor, .24);
+                }
+            }
+        }
+    }
+}