Outlining
3-banded cel-shading
3 banded cel-shader with outlining
https://www.youtube.com/watch?v=cQw1CL0xYBE&t=1464s https://www.youtube.com/watch?v=0UBNXneL1oo&t=498s https://www.youtube.com/watch?v=p8m8F3Y-WHA
