// Necessary for EdgeConnector, which creates temporary edges public Edge() { layer = -1; styleSheets.Add(AssetDatabase.LoadAssetAtPath <StyleSheet>(UICreationHelper.templatePath + "Edge.uss")); RegisterCallback <AttachToPanelEvent>(OnTargetAttachedToPanel); RegisterCallback <DetachFromPanelEvent>(OnTargetDetachedFromPanel); m_EdgeBubble = new EdgeBubble(); }