How can I effectively use shadows to create mood and atmosphere in noir comic art?

Shadows are *crucial* in noir. Don't just use them to define form; use them to suggest hidden dangers, internal turmoil, and moral ambiguity. Experiment with hard, defined shadows versus softer, diffused ones. Consider the light source – a single, harsh light creates dramatic effects. Overlapping shadows and silhouettes can add mystery. Think about how shadows can 'swallow' parts of a character or scene, symbolizing loss or the unknown.