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Typically a graphical style where there are one two colors. (A bit can be either on or off, so two options) Commonly black and white, but can be any combination depending on the style the creator is trying to accomplish. 

Featuring adorable aesthetics and charming characters, these projects often incorporate whimsical designs, pastel colors, and endearing elements.

Unity is a game engine for 2D, 3D, AR and more