/// <summary>
/// Removes the form to manage.
/// </summary>
/// <param name="materialForm">The material form.</param>
public void RemoveFormToManage(ZeroitMaterialForm materialForm)
{
_formsToManage.Remove(materialForm);
}
/// <summary>
/// Adds the form to manage.
/// </summary>
/// <param name="materialForm">The material form.</param>
public void AddFormToManage(ZeroitMaterialForm materialForm)
{
_formsToManage.Add(materialForm);
UpdateBackgrounds();
}