public Font(string familyName, float emSize)
{
this.family = new FontFamily(familyName);
this.native = LibIGraph._CreateFont(this.family.native, emSize, FontStyle.Regular);
}
public Font(FontFamily family, float emSize, FontStyle style)
{
this.family = family;
this.native = LibIGraph._CreateFont(family.native, emSize, style);
}