private void CustomizeColor(CmykColor color) { ColorChooserDialog colorChooserDialog = new ColorChooserDialog(); colorChooserDialog.Color = color; if (colorChooserDialog.ShowDialog() == DialogResult.OK) { Color = new SpecialColor(colorChooserDialog.Color); } colorChooserDialog.Dispose(); comboBox.Invalidate(); SendChangeNotification(); }