I like how picking up upgrades changes the color palette, it's a simple but effective trick!
Adding a sound feedback when a vial is refilled might be a nice touch of polish maybe, but overall it's a neat entry, congrats.
By the way, did you also mistakenly upload another game to this jam? I saw another game, with a magnetized robot that looked like it was made for GMTk, I guess it's a missclick?