is dark substratum theme which allows you to set
It has 12 sets of accent and 10 sets of background colors which allows you to set both the colors in the gradient, for both backgrounds and accents !!
60+ apps are themed on the initial release with more to follow.
Other features include high quality vector icons, custom status bar icons and 2 custom made nav bars. The theme also has additional fonts, beautiful wallpapers and a custom made boot animation to complete the package.
• Nougat Custom Roms
• Oreo 8.1 Stock
• Oreo 8.1 Custom Roms
Find it here : https://play.google.com/store/apps/details?id=substratum.greyscale.plugin
1) Check if your device meets the conditions and install Substratum theme engine
2) Open Greyscale inside substratum after giving it required permissions
3) Select the OS version on the top and apply theme according to your preference and reboot
4) Install Greyscale Accents Plugin from above link and apply the accent colors following the similar steps above
If you encounter any sort of problems, contact me via email, Google+, or Telegram, instead of giving a bad rating. Links can be found in the description.
For further support and updates, follow me on Google+