Made title bar look more like the one in the scene view and added button for showing graph in scene view (not functional yet though)

MaterialGraphProject/Assets/GraphFramework/SerializableGraph/Editor/Drawing/Drawer/TitleBarDrawer.cs

     public class TitleBarDrawer : DataWatchContainer
     {
         private TitleBarDrawData m_dataProvider;
-        private Label m_title;
+		private VisualElement m_title;
 
         public TitleBarDrawData dataProvider
         {
             };
             AddChild(rightContainer);
 
-            m_title = new Label(new GUIContent(""))
+			var titleItem = new VisualContainer() { classList = new ClassList("titleBarItem") };
+			titleItem.AddChild(new VisualElement() { classList = new ClassList("titleBarItemBorder") });
+			m_title = new VisualElement()
-                name = "title",
-				pickingMode = PickingMode.Ignore
+				classList = new ClassList("titleBarItemLabel"),
+				content = new GUIContent("")
-            leftContainer.AddChild(m_title);
+			titleItem.AddChild(m_title);
+			titleItem.AddChild(new VisualElement() { classList = new ClassList("titleBarItemBorder") });
+			leftContainer.AddChild(titleItem);
+
+			var showInProjectItem = new VisualContainer() { classList = new ClassList("titleBarItem") };
+			showInProjectItem.AddChild(new VisualElement() { classList = new ClassList("titleBarItemBorder") });
+			var showInProjectLabel = new VisualElement()
+			{
+				classList = new ClassList("titleBarItemLabel"),
+				content = new GUIContent("Show in project")
+			};
+			showInProjectItem.AddChild(showInProjectLabel);
+			showInProjectItem.AddChild(new VisualElement() { classList = new ClassList("titleBarItemBorder") });
+			leftContainer.AddChild(showInProjectItem);
 
             this.dataProvider = dataProvider;
         }

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

     flex-direction: row;
     justify-content: space-between;
     align-items: stretch;
-    background-color: #212121;
+    background-color: rgba(33, 33, 33, 0.5);
-    margin-left: 1;
+    /*margin-top: -1;*/
+    flex: 1;
+    height: 16;
-    flex: 1;
+    align-items: stretch;
+    flex-direction: row;
+    justify-content: flex-start;
-#TitleBar #left {
-    align-items: center;
+.titleBarItem {
+    margin-left: 5;
-#TitleBar #title {
-    background-color: #f00;
-    font-style: bold;
+.titleBarItemBorder {
+    background-color: rgba(33, 33, 33, 0.5);
+    width: 1;
+}
+
+.titleBarItemLabel {
+    text-color: rgba(255, 255, 255, 0.6);
+    font-size: 9;
+    text-alignment: middle-left;
+    padding-left: 5;
 }