I had a feeling Malu would enjoy this cute game about colouring a grey world, and I think she did. We played a couple of levels, meticulously coloruing every inch of the world.
The music is super cool, it's funk, jazz, and bossa nova, and reacts to which color you're painting with by playing samples of distinct instruments for each color.
Screenshots marked with 🍒 are created by syltefar and are considered public domain, free to use for anything. If you want to, you can note where you found it and link to this page.