VaLeRie is a beautiful substrate theme that supports almost all custom devices and operating systems with OMS support from Android 7.x.x and higher, along with Samsung OREO, Samsung OneUi (Pie), OxygenOS OREO and OxygenOS PIE. This topic only works with a WHO-compatible operating system mentioned above. THIS WILL NOT WORK ON A ROM STOCK NOUGAT (try it at your own risk) !!! You must have Andromeda (for Samsung and Oreo roms without root) and the Substratum application.
# Important Choose the Dark theme or the default theme and the blue accent in the Oxygen OS Display Settings.
# Select Oxygen OS Oreo or Oxygen OS Pie at the top of the overlay list
# Select all or check the options in overlays
# Apply it by selecting build and enable in the fabulous menu.
# If the QS mosaic icon still has a different color, then the accent color will go to show> settings> choose different accent
# If the dialer and contacts show some graphic faults on the glass bottom, go to settings> screen> change
# Make a complete restart.
Required Android Versions : Nougat [7.0 – 7.1.1] - Oreo [8.0-8.1]