Samsung is slow in fixing and complete their stuff. Although One Ui is better than ever but it still some annoying UI bugs. This is why Complete One UI build for. This app will provide System mods to fixing UI bugs that Samsung still ignore, complete Night Mode UI and moreover tweak the UI for better user experience.

NOW COMPATIBLE WITH ANDROID 10 (Q)

This app is Substratum based so you need these apps for it to work:

For Android 10:
TUTORIAL: https://youtu.be/dF8RCKREaCQ
Synergy - https://play.google.com/store/apps/details?id=projekt.samsung.theme.compiler
Substratum Lite - https://play.google.com/store/apps/details?id=projekt.substratum.lite&hl=en

For S9/S9+ and N9 on android 9:
TUTORIAL: https://youtu.be/SQDE28CMVIU
Substratum - https://play.google.com/store/apps/details?id=projekt.substratum&hl=en
Andromeda - https://play.google.com/store/apps/details?id=projekt.andromeda

If you have any question go to this support channel or XDA forum thread (please do not give low rate any ask here because I cannot answer that)
https://t.me/joinchat/IVyxzw8OttVkIEMLHhO__w