The Don of these features is certainly Noir Mode, offering a stylistic choice to accompany gameplay and drive the 'life of crime' experience. The update in the crosshairs of Mafia players is full of free features. To make the game’s aesthetic even richer, Hangar 13 and 2K Games have added a Noir Mode feature to the Definitive Edition’s first post-launch update.
If you’re a fan of film noir - set around the stylistic gangsters of the 1930s - then you’re surely already playing Mafia: Definitive Edition.