Already traditional graphic design employs several rule systems such as color theory, grid systems, harmonic principles (eg golden ratio). Especially endeavours by the Bauhaus, the DeStijl, Surrealism and Futurism need to be mentioned.
neue.no - Nordkyn Design System, 2014
okdeluxe & NR2154 & shiftcontrol, 2009 - COP15
The Green Eyl with E Roon Kang - MIT Media Lab, generative CI, 2011
Tim Rodenbröcker - Programming Posters 2018
Ogilvy & Mather Italia - Nutella Unica - 2017 „Algorithm designs seven million different jars of Nutella“
Joshua Davis (formerly Praystation 2001-?)
Chladni Plate (and more)