Alsing.Drawing.DrawingTools.GetDarkBrush C# (CSharp) 메소드

        private static SolidBrush GetDarkBrush(Color BorderColor)
        {
            SolidBrush dark = BorderColor.GetBrightness() < 0.5 ? new SolidBrush(MixColors(BorderColor, Color.Black, 0.7)) : new SolidBrush(MixColors(BorderColor, Color.Black, 0.4));
            return dark;
        }