A generative system can produce an infinity of outputs. An art platform combined with a blockchain allows you to store a finite number of outputs from the same system definitively without knowing upfront what the outputs would look like. This forces you to think carefully about your system: it should produce interesting works with each iteration. Some people call this long form generative art.
Regarding Monokai, I’ve written some history about it here: https://monokai.pro/history :)