Art therapy: Colouring page Pokémon X and Y Xerneas – coloring book printable or online game starts here. Coloring pictures will appeal to children of all ages. It is enough to change the game modes or choose a coloring book from a collection with a different level of difficulty. The result of the painstaking work of the young artist can be shared on social networks through the site. Creative Commons Attribution-NonCommercial 4.0 License. Author of the work: Persimmons Studio.