How to insert Outline (Border) ?

[Saico]

Hey guys, Im modifying a plugin that uses

public override void Load(IController hud)
{
base.Load(hud);

HotKey = Key.F12;
Show = true;
WhiteFont = Hud.Render.CreateFont("Blackside", 12, 255, 200, 200, 200, true, false, false);
textBuilder = new StringBuilder();
}

Anyone knows what code do i have to insert to create text outline and change its colors/thickness ?