Played on Chrome. It took me longer than it should have to realize that I can click and drag on the stars; my first interactions were just clicking and noticing the sounds being made. I soon discovered that the itch.io page overlay (with links to view the creator's other works, follow the creator, etc.) interfered with my ability to move stars in the upper-right corner, but I was able to get around that by scrolling the page a bit.
I don't know how many levels there are or how many I cleared but I got stuck and gave up. The level I quit on featured three lenses that all overlap to make seven partitions and the level has seven stars: four rotate clockwise, three counter-clockwise; there are five colors amongst the seven stars, split as two pairs and three singles; there are similarly five shapes, split as two pairs and three singles.