This may be cooler looking than iOS 7.
From Chris Harrison:
The bar graph that runs along the bottom represents all of the chapters in the Bible. Books alternate in color between white and light gray. The length of each bar denotes the number of verses in the chapter. Each of the 63,779 cross references found in the Bible is depicted by a single arc - the color corresponds to the distance between the two chapters, creating a rainbow-like effect.
Too cool. Gonna frame it and put it in my office.
You can visit Chris' site and get the original in super-hi res if you want.