드래그 어긋나는거 수정

Assets/Resources/SHI/UIToolkit/GantChartView.cs

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+using UnityEditor;
+using UnityEngine;
+using UnityEngine.UIElements;
+
+public class GantChartView : EditorWindow
+{
+    [SerializeField]
+    private VisualTreeAsset m_VisualTreeAsset = default;
+
+    [MenuItem("Window/UI Toolkit/GantChartView")]
+    public static void ShowExample()
+    {
+        GantChartView wnd = GetWindow<GantChartView>();
+        wnd.titleContent = new GUIContent("GantChartView");
+    }
+
+    public void CreateGUI()
+    {
+        // Each editor window contains a root VisualElement object
+        VisualElement root = rootVisualElement;
+
+        // VisualElements objects can contain other VisualElement following a tree hierarchy.
+        VisualElement label = new Label("Hello World! From C#");
+        root.Add(label);
+
+        // Instantiate UXML
+        VisualElement labelFromUXML = m_VisualTreeAsset.Instantiate();
+        root.Add(labelFromUXML);
+    }
+}