For added customization, customers will also be able to pick up book covers in a selection of colors, including black, white and mint green. (androidheadlines.com)
At their core, these skins are still fundamentally Android, but they usually have a different look from stock, or «vanilla», Android with added customization features, too. (androidauthority.com)
In next version hopefully they will add some customization possibilities for Home screen. (blog.the-ebook-reader.com)