Dark mode isn’t just a trend; it’s a biological preference for many. But why? The answer lies in how our eyes handle light and contrast.
Reducing Visual Noise
When we use dark mode, the "Visual Noise" of the screen is reduced. The content—text and images—pops more against a dark background. This reduces eye strain, especially in low-light environments, and allows our brains to focus on what matters.
However, dark mode isn’t for everyone. People with certain types of astigmatism actually find it harder to read light text on a dark background. The best design always gives the user the choice.