I am loving this app/launcher. As of right now this can not be made as your home launcher but it might be better if it isn't. The customization in this app is what the Leanback Launcher should have by default. The ability to make your own sections, name them what you want, and put apps and games alike in each section is a great user experience.

https://play.google.com/store/apps/details?id=net.i.akihiro.halauncher