Tint your Mac screen
This very simple app can offer huge benefits for your health over extended periods of time
Screen Tint is a deceptively simple app that is designed to do one thing, but in a variety of ways. It includes a very easy to use interface that lets you quickly adjust the settings and this makes it ideal for setting up depending on the time of day and also the task that you are currently undertaking.
Everything you need is listed in one small panel and there is also a small menu bar icon for you to access it and tweak as needed. The entire premise is built around changing the tint of the screen when you need to and that is it. It may not sound particularly exciting, but it is an app that you might be running for every single minute of your Mac usage.