/// <summary>
/// Returns the most recent <see cref="WindowSize"/>.
/// </summary>
/// <returns>The most recent <see cref="WindowSize"/>.</returns>
private static WindowSize GetMostRecentWindowSize()
{
WindowSize windowSizeFromSettings = Settings.Default.WindowSize;
WindowSize windowSizeFromSibling = WindowSize.FromWindowOfType <TimerWindow>().Offset();
return(windowSizeFromSibling ?? windowSizeFromSettings ?? new WindowSize());
}