This will make it easier to change node text color
Example:
[CustomNodeEditor(typeof(MyNode))]
public class MyNodeEditor : NodeEditor {
private static GUIStyle editorLabelStyle;
public override void OnBodyGUI() {
if (editorLabelStyle == null) editorLabelStyle = new GUIStyle(EditorStyles.label);
EditorStyles.label.normal.textColor = Color.green;
base.OnBodyGUI();
EditorStyles.label.normal = editorLabelStyle.normal;
}
}