/// <summary>
/// Attempts to decrease the index value of the specified category, and returns
/// true if the move was successfull.
/// </summary>
/// <param name="category">The category to decrease the index of.</param>
/// <returns>True, if the move was successfull.</returns>
public override bool DecreaseCategoryIndex(ICategory category)
{
return(category is IColorCategory cc && _categories.DecreaseIndex(cc));
}
/// <summary>
/// Attempts to decrease the index value of the specified category, and returns
/// true if the move was successful.
/// </summary>
/// <param name="category">The category to decrease the index of</param>
/// <returns></returns>
public override bool DecreaseCategoryIndex(ICategory category)
{
IColorCategory cc = category as IColorCategory;
return(cc != null && _categories.DecreaseIndex(cc));
}
