Thanks! Some comments:
- Intensity of specular light is a random parameter, sometimes it's zero (e.g. the first row, the second column on this image).
- There will be some sort of editing tool, but first I'm going to enable creating more diverse shapes procedurally.
- All my generators get customizable colors eventually :)
- I'm not sure I get what you mean by "standardize gable types". Is it about some parts of the same building having gable roofs and other having hip roofs?
- I don't know about support of "custom colors" mode, but at the very least there will PNG export with transparent background.