The Dark mode / night reader Chrome extension is a tool that inverts page colors, displaying white text on a dark background. This helps reduce eye strain, making it particularly useful for people working at night or in low light environments. It offers different modes to choose from, including options to invert colors and reduce contrast, invert colors with normal contrast, or reduce contrast only. The extension saves settings separately for each website and respects user privacy by not uploading any data to the internet.