private void panelColor_Click(object sender, EventArgs e)
{
Common.Controls.ColorManagement.ColorPicker.ColorPicker picker = new Common.Controls.ColorManagement.ColorPicker.ColorPicker();
DialogResult result = picker.ShowDialog();
if (result == DialogResult.OK) {
_displayedCollection.MarkColor = picker.Color.ToRGB().ToArgb();
panelColor.BackColor = _displayedCollection.MarkColor;
UpdateMarkCollectionInList(_displayedCollection);
}
}