Fulmine Software/Night Mode

Network access – to allow bug reporting (optional) and showing ads (not many).

Draw over other apps – required to overlay the blue light filter.

Accessibility Service

The app will ask you to enable the accessibility service.

Enabling the service is optional, but useful if you want to apply the blue light filter over notifications, lock screen, system navigation bar and some other system windows.

The app uses this service only to apply the filter over other apps.

The app does not collect data in connection with the accessibility service.