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-rw-r--r--src/com/vaadin/ui/themes/BaseTheme.java8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/com/vaadin/ui/themes/BaseTheme.java b/src/com/vaadin/ui/themes/BaseTheme.java
index c8ba08d30d..babdb1f1d5 100644
--- a/src/com/vaadin/ui/themes/BaseTheme.java
+++ b/src/com/vaadin/ui/themes/BaseTheme.java
@@ -44,4 +44,12 @@ public class BaseTheme {
@Deprecated
public static final String PANEL_LIGHT = "light";
+ /**
+ * Adds connector lines between the tree nodes to better visualize the
+ * hierarchy.
+ *
+ * @since 6.6.1
+ */
+ public static final String TREE_CONNECTORS = "connectors";
+
} \ No newline at end of file