Animation is the rapid display of a sequence of images of 2-D or 3-D artwork or model positions in order to create an illusion of movement. The effect is an optical illusion of motion due to the phenomenon of persistence of vision, and can be created and demonstrated in several ways. wikipedia.org

Adobe After Effects is a digital motion graphics and compositing software published by Adobe Systems, used in the post-production process of filmmaking and television production. wikipedia.org

Character animation is a specialized area of the animation process, which involves bringing animated characters to life. wikipedia.org

JSON or JavaScript Object Notation, is an open standard format that uses human-readable text to transmit data objects consisting of attribute–value pairs wikipedia.org

2D computer graphics is the computer-based generation of digital images mostly from two-dimensional models (such as 2D geometric models, text, and digital images) and by techniques specific to them. wikipedia.org