
Description: Twilight is a free open source software that adjusts your screen to reduce eye strain. It makes the color of your screen adapt to the time of day, reducing the amount of blue light emitted. This helps prevent disruption of your circadian rhythms and improves sleep.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Pixie Renderer is an unbiased, physically-based renderer focused on speed and quality. It's designed for 3D artists and aims to provide fast feedback while modeling and look development. Pixie uses path tracing for realistic results and offers features like subsurface scattering, volumetrics and displacement.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API