Color is density. Shape is how much of it there is.
Everything you balance, you keep.
Everything you have balanced, kept.
A balance puzzle about color.
Every piece has a weight, and that weight is its color times its shape. Denser colors weigh more; fuller shapes have more of them. A magenta square is heavy. A yellow star is not.
Drag a piece onto the right-hand side — or tap it, then tap a notch — until it balances the left. Further out counts for more.