GALAXY TAB USERS: Your device DOES NOT have a native theming engine to use without root, thus, THIS WILL NOT WORK ON YOUR DEVICE! THEME KILLER USERS: We separated the Theme Killer into a different package, available here, completely free! https://play.google.com/store/apps/details?id=projekt.theme.killer This add-on is strictly used to enable Samsung mode for Samsung devices (ONLY Nougat 7.0 - 7.1.1) on our main theme engine, Substratum, downloadable here: https://play.google.com/store/apps/details?id=projekt.substratum This is required to use Substratum regardless whether you are rooted or not, since it enables a series of features specifically for Samsung users. Thank you to all our testers in making this possible and the people who believed in us enough, you guys were great motivations! This is a paid add-on as a gesture of thanks to the team! For more information on how to use this, please consult our XDA thread: https://forum.xda-developers.com/apps/substratum/7-0-substratum-sex-tw-beta-t3620796 For direct help (no pirates please, or yellow actionbar users): https://t.me/substratum (#sungstratum)