The reason those traces are shaped like that is to keep them the same length as some other trace. This question has some answers: https://electronics.stackexch

The reason those traces are shaped like that is to keep them the same length as some other trace. This question has some answers: https://electronics.stackexchange.com/questions/74789/purpose-of-wave-shaped-pcb-traces https://electronics.stackexchange.com/questions/74789/purpos... Designers would say that none of those corners are right angled, and that they each have a bit of bevelling.