I really like this! It's such a creative idea for a relaxing puzzle game with no time pressure whatsoever. Panel de Pon/Puzzle League is one of my favorite puzzle games, and this gives me some heavy vibes without being a simple clone.
I did encounter a problem however. The "how to play" section crashes my game every time I select it on the menu. This also caused my high score to be deleted because it did not save upon exit. My laptop specs are W7/Intel Core i7/NVIDIA NVS 4200m; this is what the error message looks like: https://i.imgur.com/hCNiO2h.png
Otherwise, this is a very charming puzzler that I can see myself playing in short sessions from time to time, and I'm glad I picked it up. Nice work!