UnityEditor.AboutWindow.ShowAboutWindow C# (CSharp) Method

        private static void ShowAboutWindow()
        {
            AboutWindow window = EditorWindow.GetWindowWithRect<AboutWindow>(new Rect(100f, 100f, 570f, 340f), true, "About Unity");
            window.position = new Rect(100f, 100f, 570f, 340f);
            window.m_Parent.window.m_DontSaveToLayout = true;
        }