It also has a few additional customization features like icon pack support, variable icon and grid sizes, adaptive icons, and more. (androidauthority.com)
There is also icon pack support, frequent updates, and a lot more. (androidauthority.com)
The OnePlus X software further offers the Google Now - inspired Shelf, rocking the neat custom icon pack support, custom hardware and software navigation keys, file manager, or a quick swipe - down to access the notification tray. (techtimes.com)