What are some common tropes and themes found in noir stories, and how can I incorporate them into my comic?

Common noir themes include betrayal, corruption, moral ambiguity, fate, and the futility of hope. Tropes include the femme fatale, the hard-boiled detective, the corrupt city official, and the desperate protagonist. Don't simply *use* these tropes; subvert them or explore them from a fresh perspective. Focus on the psychological impact of these themes on your characters.