I've worked on this a bit! It turns out to be quite difficult (at least it was for me)
One of the big problems is that GANs can't generate files at a high enough resolution to make great coloring pages.
I then tried to make a neural network that would generate SVGs directly, which turns out to be really tricky too.
One thing that might work is to generate low resolution pages with a GAN, and then use an image to svg converter to make high resolution versions... maybe I'll try that next :)
One of the big problems is that GANs can't generate files at a high enough resolution to make great coloring pages.
I then tried to make a neural network that would generate SVGs directly, which turns out to be really tricky too.
One thing that might work is to generate low resolution pages with a GAN, and then use an image to svg converter to make high resolution versions... maybe I'll try that next :)