Generally they are, but if the breeder signs off full naming rights, which they usually do not, I got lucky..you can..
all my dogs carry "WILKES" as the very first name, even my pups I sell..I dont sign them off because my babies, not to brag, come from the best bloodlines , Full german as possible, every one of my dogs is traced back in lineage to WW@ when they first started the breed in germany..
There are 3 different types of boxers, you have American, English , and German..none of mine are anything but full Germans..thats why I have 2 males and 3 females, but Bella has to find a stud because she came from one of my litters from "Big Momma"...I will keep one of her pups if I get the color I want and it is a female..Im hoping for a golden tiger...she is a Flash brindle with a harlequin eye, very rare , and she carries the DNA to produce any color of pup..its just the luck of the draw..and this will be her first litter...I am very funny about my pups, one litter a year oly and I do extensive checking of prospective homes..I take a ist of names when a female gets pregnant and start checking before they are even born..and no female will have a litter 2 years in a row..hard to explain, but I am careful with my pupaloos....I think of their safety first