Are there any Full Colored Textbooks for Japanese?

I looked through a lot of Japanese textbooks, and most of them are black and white, or have very little shades of colors. I was looking through Genki, Minna No Nihongo, etc. Are there any full colored textbooks? And how do they books compare content wise to Genki , etc? I know when I was Germany and Korea, they have many colored textbooks for some reason. Color helps me increase my visual memory.

Thanks,