Not Only Is The World Not Black&White, It Is Not Just A Carousel of Color
Humans Are MultiModal Creatures With MultiModal Minds
Wikipedia: Texture refers to the properties held and sensations caused by the external surface of objects received through the sense of touch.
Using Other/Related Haptic Technology Readers Would be Able To Feel The Range of Textures Layered Over The Text Within A Corpus.
Such Texture Could Be Used to Denote Another Dimension Of The Text OR Denote Relative Importance.
THINK That This Is FarFetched? Not Really.
A Decade Ago I Began to Explore Haptic Interaction in Web and non-Web Databases
The Magic Touch(sm) [http://www.public.iastate.edu/~CYBERSTACKS/Touch.htm]