void BlendBoxTop(FastBitmap bmp)
{
int width = RealWidth;
Rectangle r = new Rectangle(X + border, Y, width - border * 2, border);
r.Y += border; Gradient.Blend(bmp, r, FastColour.Black, 75);
r.Y += border; Gradient.Blend(bmp, r, FastColour.Black, 50);
r.Y += border; Gradient.Blend(bmp, r, FastColour.Black, 25);
}