


It's possible to set a time schedule for that, or just leave it a certain way all day. You can also customize your preferred color temperature from 2700K (yellow-red) to 6400K (normal blue). Alternatively, put in your ZIP code and have it automatically sync up its filter with the position of the sun to mimic natural daylight. You can set the app to automatically activate at a certain time or transition to a warmer, yellower light slowly over the course of the day. It's a free app that you can control from your menu bar. The gold standard for display filtering is f.lux. Fortunately, there are software solutions for stopping the blue light in your display from getting to your eyes.

On the visible light spectrum, blue light has the highest amount of energy, and is therefore the most exhausting kind of light to look at over a long period of time. Filtering out the blue light generated by your computer screen is one of the best ways to mitigate eye strain.
