/// <summary>
/// Called when [color property changed].
/// </summary>
/// <param name="d">The d.</param>
/// <param name="e">The <see cref="System.Windows.DependencyPropertyChangedEventArgs"/> instance containing the event data.</param>
private static void OnColorPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
PlanetControl b = d as PlanetControl;
if (b == null)
{
return;
}
var color = (int)e.NewValue;
b.elBack.Fill = Settings.AvailableColors[color];
}