I managed to beat all the levels and collect all the stars! This was genuinely a pleasure to play through, the level design was intelligent, the music and artwork combined to create a wonderfully melancholy atmosphere, and the light decay mechanic was something I'd never seen or thought of, but fits so perfectly into the theme. I'm also super impressed you managed to build so many levels considering it must have taken a lot of trial and error to get the puzzle designs just right. Well done!