I really like the aesthetic of the game; all the art and assets used go well with each other and nothing seem out of place (except maybe the text on the tombstones). The music also fits very well with the theme of the game. I like the tombstone text in the beginning prompting the player to do something, although it could be a bit small and hard to read for some people.
The game is fun and I like the light mechanic forcing you to remember where platforms. There are some things that aren't intuitive though. I first had the misconception that jumps were tied to light energy, but it turns out they were independent. Another thing was that since orange candies give you light, it would make more sense that dark candies takes away your light. The tombstones properly explain this though so it should be fine.