In many anime series, the theme of light and shadow is portrayed through contrasting visuals and symbolism. Light is often used to represent hope, purity, and positivity, while shadow can symbolize darkness, mystery, and inner turmoil. This contrast is depicted through the use of bright colors for scenes of happiness and darkness for moments of tension or conflict. Characters may also be visually shown with shadows covering their faces during challenging times, while being bathed in light during moments of growth or enlightenment. Additionally, the use of lighting effects and shadows in animation techniques can further emphasize the theme of light and shadow in anime.