You can adjust color and brightness of your screen. You can protect your screen from prying eyes with the filter.
This app is ad-free.
This app can create multiple filters, and quickly switch between them by using shortcut icons.
Red, blue, green, and gray filters are included in this app, so you can use them easily.
Of course, colors and opacity are customizable.
This app keeps CPU usage low when the filters are activated.
The filters may be disabled sometimes by Android design.
This app recovers the filters in seconds.