Samsung has an app called "Good Lock", with a bunch of sub-apps, that allow a crazy amount of customization. Those for example are just toggles in the "QuickSta

Samsung has an app called "Good Lock", with a bunch of sub-apps, that allow a crazy amount of customization. Those for example are just toggles in the "QuickStar" sub-app. Some of the changes I've made include different icons for the back/home/app switcher buttons at the bottom of the screen and a different layout for the app switcher.