You could have downloaded SunsetScreen 1.50 from our software library for free. This free software was originally produced by Daniel White. SunsetScreen is included in Home & Hobby Tools.
SunsetScreen was developed to work on Windows XP, Windows Vista, Windows 7, Windows 8, Windows 10 or Windows 11 and is compatible with 32-bit systems. The default filename for the program's installer is SunsetScreen.exe. The most popular versions among the program users are 1.3, 1.2 and 1.0.
From the developer:
SunsetScreen is a free Windows app (for personal use) which helps take the glare off your your screen in the evening. Scientific research has shown that melatonin - the chemical the brain makes late in the day - is reduced when exposed to blue light. By tempering this blue light, it becomes easier to wind down properly at night, and thus have a more restful sleep.
You may want to check out more software, such as winspiroPRO, EyeDefender or Sleepyhead, which might be similar to SunsetScreen.