The timber trade, just to be different (or awkward), differentiates between the two types of wood it supplies for construction and log cabin manufacture based on slight color differences. Redwood has a pinky tinge; whitewood (when new) is very pale, almost white. You would not necessarily notice any difference unless you were used to looking at wood or he… More on this story here.
https://www.eurodita.com/redwood-vs-whitewood-in-the-manufacture-of-log-cabins/