Q.My New Purple Magic Crepe Myrtle Doesn’t Look Right
Hi, I just got a purple magic crepe myrtle by mail. The trunks are a different color than the branches. The trunk is light while the branches are dark and dry. It was on a shipping truck for a week. Should I trim off the dark branches next spring? It’s my first crepe myrtle but it looks different than what I’ve seen in person.

Certified GKH Gardening Expert
This is, normal, bark shedding! I wouldn't worry too much. This article will explain:
https://www.gardeningknowhow.com/ornamental/trees/crepe-myrtle/bark-shedding-crepe-myrtle.htm