/// <summary>
/// Initializes a new instance of the <see cref="Font"/> class using Qt based glyphs.
/// </summary>
/// <param name="nameFont">
/// Name of the font. The name should match the name of a system font (such as Times).
/// If the font is not found, a default one is used.
/// </param>
/// <param name="pointSize">
/// Size of the font. If not specified, equal zero or negative, the point size of the
/// font is set to a system-dependent default value. Generally, this is 12 points.
/// </param>
public Font(string nameFont, int pointSize = -1)
: this(nameFont, pointSize, Scalar.All(0))
{
}