It is now well known that the blue glow of monitors can suppress the production of melatonin, which is responsible for natural sleep. In recent years, many software developers have tried to contribute to solving this problem - by using special night modes for applications. After all, the effect of correctly selected lighting on user productivity is not only scientifically proven, but also experienced by thousands of people. So what is this night mode and why is it needed?
Nature and evolution have given the human body a complex circadian rhythm mechanism based on melatonin. This hormone is practically not produced in bright daylight, but with the onset of darkness, the process starts, and an increase in the concentration of melatonin makes us fall asleep. And in order to deceive his body, a person thought of changing the lighting in the workplace.
Many control applications manipulate lighting parameters such as the temperature of the light. For daylight, which is characterized by white and blue hues, it is 6500K, the evening is colored yellow-orange with a temperature of 1200K, and the night is represented by cold blues and blacks. If we artificially delay the lighting at the evening level, block the blue color, plus do not allow the display to switch to bright "daytime" mode, we will get ideal conditions for working in the dark.
Most "night modes" in modern operating systems are tied to real daylight hours and automatically adjust the temperature of the light as the sun moves across the sky. Another, simpler way is to use the regular mode activation timer. But you can switch this parameter manually, which is convenient when you need to work with graphic editors and accurate perception of color shades is important.