Impact of Dark Mode on Software Developers

Authors: Professor Sakshi M. Rahangdale, Professor Prajakta D. Helonde, Professor Pallavi S. Bansod, Professor Nikita S. Bante, Professor Uday D. Mahure

Abstract: With the increasing use of screens in development environments, user interface personalization- especially the implementation of dark mode—has become a prominent trend. Dark mode, characterized by light-colored text on a dark background, has gained popularity for its perceived visual comfort, battery efficiency, and aesthetic appeal. This study explores the cognitive, behavioral, and productivity- related impacts of dark mode on software developers, aiming to bridge the gap between UI preference and developer performance. Using a mixed-methods approach, including controlled experiments, eye strain surveys, and productivity assessments, the research evaluates metrics such as code comprehension speed, eye fatigue levels, and subjective comfort in light versus dark themes. Results indicate that while dark mode reduces screen glare and visual fatigue for some users—especially in low-light settings—it may impair readability and slow code scanning for others, particularly during extended periods. The study concludes with recommendations for theme customization, ergonomic screen settings, and employer-level policy considerations to optimize developer well-being and efficiency.

DOI: https://doi.org/10.5281/zenodo.16025869