I love this generator, but I have come across a small problem: I wanted to export a city to SVG to print it. Unfortunately, even though I set the palette to B&W and hatching to on, the SVG export uses solid greys instead. The PNG export works as expected, but I'd prefer to have the city in a vector format.

That's true, hatching is one of the features not supported in SVG export. I never really tried to fix it because I thought I'm the only one who uses hatching :)