A lot of people are having success by adding extra networks (lora is the most common) which are trained on the type of image you're looking for. It's still a ra

A lot of people are having success by adding extra networks (lora is the most common) which are trained on the type of image you're looking for. It's still a raster image, of course, but you can produce images which look very much like rasterizations of vector images, which you can then translate back into SVGs in Inkscape or similar.