Theme works with custom 7.1.x/ 8.x ROMs with OMS support (LineageOS and OxygenOS aren’t fully supported)
• Theme works with Google stock 7.1.x/8.x ROMs (note that stock ROMs have theming limitation)
• Theme doesn’t work on devices which do not meet the requirements above
• You need substratum app from the Play Store to apply the theme
• You need to be rooted

Theme works on:
– OMS ROMs: custom Marshmallow ROMs (Dark and Liquid) and Nougat (only Dark theme) with oms3 commits
– Legacy ROMs: custom AOSP Marshmallow ROMs and Nexus stock Marshmallow (Dark and Liquid) and Nougat (only Dark theme)

You have to be rooted.

Friendly user tutorial on how to install the theme:

  1. For Legacy ROMs: Make sure you first delete vendor/overlay folder if you previously use layers on your ROM
  2. Install Substratum theme engine app from Play Store
  3. Install Mono
  4. Run Substratum app, allow the SuperSU permission, allow modify system settings
  5. Click on Mono (big button in the Substratum app)
  6. Go to Overlay manager tab and tick the switch to select all overlays (you should first choose between default base [dark grey] variant and Liquid [semi transparent])
  7. Press the fab button (big round button with brush icon)
  8. For Legacy ROMs: Press Install
  9. For OMS ROMs: Press Build & Enable
  10. For Legacy ROMs: Wait until it installs all the overlays and then reboot
  11. Install additional font and sound packs if you want
  12. F*cking enjoy.
  13. For those who give 1 star before reading the instructions we have only one thing to say “You Know Nothing, Jon Snow.”

You should also read this
and this


  • Updated Google+ to v10
  • Added some color love to BelArt design (fabs, various UI elements and text)
  • Lots of small bug fixes and UI improvements


  • Mono/Art [substratum] Screenshot
  • Mono/Art [substratum] Screenshot
  • Mono/Art [substratum] Screenshot
  • Mono/Art [substratum] Screenshot
  • Mono/Art [substratum] Screenshot
  • Mono/Art [substratum] Screenshot


[Substratum] Mono/Art v28.4 [Patched] / Mirror / Mirror / Mirror

[Substratum] Mono/Art v20.3 [Patched] / Mirror / Mirror

[Substratum] Mono/Art v17.8 [Patched] / Mirror