Adafruit GFX is an open-source graphics library designed for Arduino and compatible microcontroller platforms. It provides a common set of functions for drawing shapes, text, and images on a wide range of displays, including OLED, LCD, and e-paper screens. The library is widely used in DIY electronics and embedded systems projects, allowing developers to render graphics efficiently without dealing with low-level display protocols. Adafruit GFX supports basic drawing operations such as lines, circles, rectangles, and bitmap images, and can be extended with additional libraries for advanced features. While not directly related to cybersecurity, it is commonly used in hardware projects where secure display of information may be required.