protected void SetColor(uint color1 = 0x808080, uint color2 = 0x808080, uint color3 = 0x808080) { if (this.NPC == null) throw new InvalidOperationException("NPC's race has to be set first."); this.NPC.Color1 = color1; this.NPC.Color2 = color2; this.NPC.Color3 = color3; }