Speaking of Bluestreak.
In my own ideas about how new bots are born, living metal forms sort of an "egg" around a new spark when the Matrix/Allspark spawns it and then the sphere slowly develops colors, patterns, biologhts, and transformation seams before unfolding into a sparkling (which then grows slowly via minerals in energon it eats adding to its body mass, and can still turn into a sphere as a defense mechanism until kibble starts intervening).
It'd propably make the most sense for the sparklings' caretakers to give them their names before they "hatch". Most names aren't about physical attributes but.... some are. Like for example Bluestreak, my throwaway OC Blueback whose name I got from a random TF name generator, and an obscure Autobot named Pincher (the first two more so). Let alone altmode-related names like Wolfang. I'm not sure how to make it make sense.