The Color Kittens The Color Kittens The Color Kittens is a children's book by Margaret Wise Brown, illustrated by Alice and Martin Provensen published as part of the Little Golden Books series in 1949. The story revolves around two kittens, "Hush" and "Brush," who attempt to create green paint through mixing their other paints. Their attempts lead to a variety of different hues—none of them green. The book's famous catch phrase is "Blue is blue, and red is red! They still need green!" Children's book author and illustrator Paul O. Zelinsky, for whom the book was a childhood favorite and inspiration, said that,
Archer Maclean's Mercury color. However, by moving under Paint Shops, the color of the Mercury can be changed. Some doors (called filters) only allow matching-colored Mercury to pass through; some switches are also color-coded. If the Mercury is split up, the two blobs can be colored differently; if the two then merge, they form a new color. Color mixing is based on the RGB color model, as opposed to the color rules of paint. For example, a red blob and a green blob merge to form a yellow one. There are seven worlds in the game: Each world has its own theme and