/// <summary>
/// Coerce the selected color to fulfill certain requirements: (i) the color must still be a member of the ParentColorSet of this color, and (ii) if the <see cref="ShowPlotColorsOnly"/>
/// property is set to <c>true</c>, the color must be a member of a plot color set.
/// </summary>
/// <param name="color">The color that fulfills the above stated requirements.</param>
/// <returns></returns>
protected virtual NamedColor InternalSelectedColorCoerce(NamedColor color)
{
color = color.CoerceParentColorSetToNullIfNotMember();
if (ShowPlotColorsOnly && (color.ParentColorSet == null || false == ColorSetManager.Instance.IsPlotColorSet(color.ParentColorSet)))
{
return(ColorSetManager.Instance.BuiltinDarkPlotColors[0]);
}
return(color);
}