Three Balls of Wool (Can Change the World) by Henriqueta Cristina and Yara Kono

In search of a freer place where every child can go to school, a family moves from Fascist Portugal to Communist Czechoslovakia. Different as this new country is, however, it is far from ideal. In this new, gray world, the lack of freedom is felt in the simplest things, such as the colors one can and cannot wear.