Audiences generally view Star Wars' Darth Vader as one of the most iconic villains in popular culture, and The Empire Strikes Back deserves a lot of credit for subtly redesigning the villain and making him such an icon. Played by bodybuilder David Prowse, and with James Earl Jones as the voice actor, Darth Vader has been a staple in pop culture since he boarded the Tantive IV in the first Star Wars film, juxtaposing the stark white background of the consular ship. However, in the sequel, his look was slightly updated, which is when he became such a commanding presence.
https://screenrant.com/darth-vader-helmet-armor-empire-strikes-back-changes/