It actually addresses both accessibility and modern design.
Dark mode reduces screen glare and blue light exposure, helping to lessen eye strain, especially in low light or evening environments. Nearly 82% of smartphone users now report using dark mode, and most prefer apps that offer a dark theme.
All major platforms including iOS, Android, Windows and macOS support dark mode natively, so seamless light and dark toggles have become a user expectation.
Research also shows that negative polarity displays significantly improve comfort during prolonged use.
These points demonstrate that a light and dark switch is not merely a design flourish but a fundamental accessibility feature and modern requirement.