User friendly gradient colors

[Mindset]

Ok here is my final snippet of code - as jernonymite says it's not elegant but it seems to do the job.
If I have made any errors please let me know but it worked ok all day yesterday.

in OnstateChange Set Defaults

Gradient_Mixer_Colour         = Brushes.DodgerBlue;

in OnRender

            SharpDX.Color sharpColor = new SharpDX.Color(Gradient_Mixer_Colour.Color.R,Gradient_Mixer_Colour.Color.G,Gradient_Mixer_Colour.Color.B);
​        new SharpDX.Direct2D1.GradientStopCollection(RenderTarget, new SharpDX.Direct2D1.GradientStop[]
            {
                new    SharpDX.Direct2D1. GradientStop()
                {
                     Color =  sharpColor,
                    Position = 0,
                },
                new SharpDX.Direct2D1. GradientStop()
                {
                    Color =  SharpDX.Color.AntiqueWhite,
                    Position = 1,
                }
            }));​

Properties

[XmlIgnore]
[Display(GroupName = "Gradient Colour", Order = 1, Name = "Flash Gradient Shading", Description = "Mix Colour for Gradient. Base is white")]
public SolidColorBrush Gradient_Mixer_Colour { get; set; } // brush selection set by user in UI

[Browsable(false)]
public string gradient_Mixer_Colour // string used to serialize selection set by user in UI
{
  get { return Serialize.BrushToString(Gradient_Mixer_Colour); }

  set {if (Gradient_Mixer_Colour != null)
                {
                    if (Gradient_Mixer_Colour.IsFrozen)
                        Gradient_Mixer_Colour = Gradient_Mixer_Colour.Clone();
                    Gradient_Mixer_Colour.Freeze();
                }
}​