Replaced accidental tabs with spaces

MaterialGraphProject/Assets/GraphFramework/SerializableGraph/Editor/Drawing/AbstractGraphDataSource.cs

         [SerializeField]
         private List<GraphElementData> m_TempElements = new List<GraphElementData>();
 
-		[SerializeField]
-		private TitleBarDrawData m_TitleBar;
+        [SerializeField]
+        private TitleBarDrawData m_TitleBar;
-		public TitleBarDrawData titleBar
-		{
-			get { return m_TitleBar; }
-		}
+        public TitleBarDrawData titleBar
+        {
+            get { return m_TitleBar; }
+        }
 
         void OnNodeChanged(INode inNode, ModificationScope scope)
         {
 
             this.graphAsset = graphAsset;
 
-			m_TitleBar = CreateInstance<TitleBarDrawData>();
-			m_TitleBar.Initialize(graphAsset);
+            m_TitleBar = CreateInstance<TitleBarDrawData>();
+            m_TitleBar.Initialize(graphAsset);
 
             if (graphAsset == null)
                 return;

MaterialGraphProject/Assets/GraphFramework/SerializableGraph/Editor/Drawing/AbstractGraphEditWindow.cs

             var source = CreateDataSource();
             source.Initialize(m_LastSelection);
 
-			m_TitleBarDrawer = new TitleBarDrawer(source.titleBar);
+            m_TitleBarDrawer = new TitleBarDrawer(source.titleBar);
             m_GraphView.dataSource = source;
 
             rootVisualContainer.AddChild(m_TitleBarDrawer);
                     var source = CreateDataSource();
                     source.Initialize(m_LastSelection);
                     m_GraphView.dataSource = source;
-					m_TitleBarDrawer.dataProvider = source.titleBar;
+                    m_TitleBarDrawer.dataProvider = source.titleBar;
 
                     m_GraphView.StretchToParentSize();
                     Repaint();

MaterialGraphProject/Assets/GraphFramework/SerializableGraph/Editor/Drawing/Styles/SerializableGraph.uss

 NodeDrawer {
-	flex-direction: column;
+    flex-direction: column;
-	flex-direction: row;
+    flex-direction: row;
-	flex:1;
-	flex-direction: column;
+    flex:1;
+    flex-direction: column;
-	flex:1;
-	flex-direction: column;
+    flex:1;
+    flex-direction: column;
-	flex-direction: column;
-	padding-bottom: 2;
+    flex-direction: column;
+    padding-bottom: 2;
-	flex-direction: column;
+    flex-direction: column;
-	height: 26;
+    height: 26;
-	flex-direction: column;
+    flex-direction: column;
-	height: 200;
-	width: 200;
+    height: 200;
+    width: 200;
-	height: 26;
+    height: 26;
 }