Star Wars Rogue One: 37 Easter Eggs & References You Must See
2. Vader's Old-School Helmet
You've got to give Gareth Edwards and his team credit: the attention-to-detail in Rogue One is absolutely insane, and one of the more astute creative choices is to give Vader a duller helmet design more in line with the one he wore in A New Hope.
It wouldn't have made much sense if Vader had a shiny new suit in Rogue One, only to go back to his duller one in ANH and then get the shiny one back in The Empire Strikes Back.
It may seem like a triviality to some, but it's a nice touch that maintains internal consistency.