and everything Substratum writes in data (/data/system/theme and /data/resource-cache) hence providing you with a total clean slate in case
anything goes wrong. This is your reset button.
Of course you will have to reinstall the module before applying any new theme configuration. Failure to do so, Substratum WILL write in /system.
Uninstaller also available as a separate attachment on this post.
So this is the result of updating my device to Nougat and hating with a passion the white notifications which I find entirely unusable :P
The only way to theme the notifications is using a Substratum theme. If you're using a custom ROM with OMS support you're good to go
but for the rest of us with stock/TW etc ROMs you can only use Substratum Legacy mode on rooted devices which taints the system partition.
This module allows the use of Substratum themes in Legacy mode, without writing anything in /system.
1. Install module in Magisk and reboot.
2. Apply any Substratum theme.
In case of reflashing your ROM, as long as you don't wipe the data partition, the moment you reinstall Magisk, your theme will be automatically re-enabled.
Until the module is in the magisk repo, you can download the .zip and install from Magisk manager.
This has only been tested on my own device, (Samsung S6 Edge+ 928F) running Stock Nougat.
It should work with any ROM and Themes which support the Legacy mode.