Many thanks for the detailed response! My background is almost entirely programming, so the feedback on the art presentation is very welcome. I played around with theming for the Font, button, UI, etc. but didn't figure it out enough to really push the idea I had in my head. And the crosshair is my shame! I had it on my list to do a second pass on the visual style for that, but alas, time was not on my side.
I'll have to play around with the rendering tiny and then scaling up. I hadn't thought of that approach before. I know, for the roads, I had planned on tiling a texture across them, but I think there may be a bug in the Line2D with the vertices because it went all sorts of weird when I tried.