[Extended]
    public static class BrandingStatics
    {
         static BrandingStatics()
        {
            Brushy = new SolidColorBrush(new Color(255, 0, 255, 255));
        }

        private static SolidColorBrush _brushy;
        public static SolidColorBrush Brushy
        {
            get { return _brushy; }
            set { _brushy = value; }
        }
    }

    [Extended]
    public class BrandingStatic : SerializableComponent
    {
        //Note we need an instance so we can dynamically change the values dynamically
        private static BrandingStatic _instance;
        public static BrandingStatic Instance
        {
            get { return _instance ?? (_instance = new BrandingStatic()); }
        }

        public BrandingStatic()
        {
            Instance.SetTestColor(new SolidColorBrush(new Color(255, 0, 255, 255)));
        }

        private SolidColorBrush _testColor;

        public void SetTestColor(SolidColorBrush brush)
        {
            _testColor = brush;
            NotifyPropertyChanged("TestColor");
        }

        public static SolidColorBrush TestColor { get { return _instance._testColor; } }
    }

[Extended]
public class Settings : BaseComponent
{
    public static Noesis.DependencyProperty BaseColorProperty = Noesis.DependencyProperty.Register(
        "BaseColor", typeof(SolidColorBrush), typeof(Settings), new PropertyMetadata(Brushes.DimGray()));
}

<Grid.Resources>
    <Style TargetType="Button">
        <Setter Property="Background" Value="{x:Static Settings.BaseColor}"/>
    </Style>
</Grid.Resources>