Screen Tools, developed by Masaru, is a free android utility app that offers a comprehensive set of tools designed to enhance the display of your device. With Screen Tools, users can easily darken or brighten their screen to suit their preferences and lighting conditions, ensuring optimal visibility at all times.

The app also features a Custom Color Filter option, allowing users to personalize their screen display with a variety of color options. 
Additionally, Screen Tools enables users to adjust the contrast of their screen, providing a customizable viewing experience tailored to individual needs.