I really liked this article series. The pattern areas are a cool idea on how to add more colors to a 4-shade monochrome game without "changing the API" (See a

I really liked this article series. The pattern areas are a cool idea on how to add more colors to a 4-shade monochrome game without "changing the API" (See also http://loveconquersallgam.es/post/50580417138/this-is-neat-a-debug-window-border-that-was-used http://loveconquersallgam.es/post/50580417138/this-is-neat-a... on how developers/designersprobably used to test it..)