I had fun with it. I made it to the end. Art, music, and overall aesthetic go together well.
I realize in a jam game there isn't always time to polish as much as we want, but a couple things stood out to me as needing improvement:
1. Too many pixel-perfect jumps and leaps-of-faith. One example would be the level where you have to dodge the heart in order to use it as a platform later. I thought this was a clever twist of the rules, but even once I figured it out, executing the route through the level was finnicky. I kept collecting that heart by mistake.
2. The connection between the theme and the gameplay felt a little weak. If you hadn't told me it was about self-acceptance and inclusion, I would've guessed it was a more generic overcoming obstacles, if I had picked up on a psychological interpretation at all. You were onto something with bringing color back into the world--but the idea probably needed to be fleshed out more to make the theme stronger. Was Gris an inspiration?