Beautiful and well-made game overall, and I really enjoyed it. Surprisingly, the early levels felt harder than the later ones. Tiles that clearly blocked building or hinted at a single solution helped a lot. Because of that, the final level felt smoothly flowing, and that was satisfying. The main thing I missed was a quick restart button, instead of having to go through the menu and toggle the view again. With a few quality-of-life additions this would be a near-perfect experience.
Also it reminds me of the classic Minesweeper :)