What does untreated brandy look like?

Brandy, like whiskey and other spirits, is typically aged in wooden barrels over an extended period of time, resulting in its characteristic colour range from pale yellow to golden or amber hues. It is not clear what you mean by 'untreated brandy' but if you are referring to the early stages of production before barrel ageing, the distillate, commonly known as a low wine or white dog depending on the distillation cut, is usually colourless unless other colouring agents have been added.