Alexander Ameye explained his toon shading workflow. Check it out!

Alexander is an engineering student, who focuses on Unity and releases various quick tutorials on Twitter. This time, he created a simple toon shader that is completely free and made a tutorial explaining the technique.

Please note that the shader below is a bit more complex than in the video. The shader allows you to control the color gradient and supports shadows. 

He also shared the graph that you can get here.

The image is the artwork by Diego Honorato.