/// Creates a new <see cref="StatisticItem"/>, to be displayed inside a <see cref="StatisticRow"/> in the results screen.
/// </summary>
/// <param name="name">The name of this item.</param>
/// <param name="content">The <see cref="Drawable"/> content to be displayed.</param>
/// <param name="dimension">The <see cref="Dimension"/> of this row. This can be thought of as the column dimension of an encompassing <see cref="GridContainer"/>.</param>