https://www.xda-developers.com/samsu...sung-galaxy-s8
How to install:
Open the Theme Store app and apply the default theme.
Download and install the theme APK from the above link.
Open the Theme Store app via the Wallpapers and Themes section in Settings.
You should see the new Samsung Experience 10 theme here. Apply the trial and then restart your phone. Even though it says it’s a trial, it’s actually the full theme.