If you love stock Android Lollipop’s Material Design clean UI instead of Samsung’s buggy TouchWiz UI, you definitely like the Stock Android theme for Galaxy S6/S6 Edge. The theme developer Samer Zayer has modified almost everything, including settings menu, quick setting toggles, apps icon and apps like messages, clock, dialer and calculator to look like stock Lollipop.

Of course, Samsung has streamlined the TouchWiz UI with Galaxy S6 and S6 Edge and undergone something of a Material Design makeover. Now it looks flatter and cleaner than before, but visually very similar to previous TouchWiz. However, the implementation of Theme Manger lets you make your Galaxy S6 look how you want it with themes.

How to Install Stock Android Themes on Samsung Galaxy S6 and S6 Edge

  1. On your Galaxy S6, go to Settings -> Themes.
  2. To download Stock Android theme from Samsung’s Theme store, tap ‘Store’ in the upper right corner and scroll down for Themes for Man Section.
  3. Tap the download button. Once downloaded the theme, apply it. (Source)