code: func (ui *ColorUI) Warn(message string) {
  	ct.ChangeColor(ui.WarnFGColor.Code, ui.WarnFGColor.Bright, ui.WarnBGColor.Code, ui.WarnBGColor.Bright)
  	ui.UI.Warn(message)
  	ct.ResetColor()
  }
docs: // Warn calls UI.Warn to write.
  // Useful when you want separate colors or prefixes.
  // WarnFGColor and WarnBGColor are used for color.