It seems a few people didn't appreciate the previous art style of Growing Pains so the fractals and rainbow colors have gone to be replaced with a simpler look. Have a look at the new trailer:
The game also now features Steam Workshop support so you can make your own levels and share them with the world. I've made a few extra levels myself with more in the pipeline.
Check out the game on Steam or have a look on the Smudged Cat Games website.