SFFontOnline documentation for the Font class
val createFromFile : filename:string -> tval createFromMemory : data:string -> tval getKerning : t -> first:int32 -> second:int32 -> characterSize:int -> floatval getLineSpacing : t -> characterSize:int -> floatval getUnderlinePosition : t -> characterSize:int -> floatval getUnderlineThickness : t -> characterSize:int -> float