Custom point icons on recent Android versions

This is follow up to this: https://help.locusmap.eu/topic/own-custom-icon

and this:

https://help.locusmap.eu/topic/30031-how-to-change-icons-in-android-12android-13

The manual here is outdated or incomplete: https://docs.locusmap.app/doku.php?id=manual:advanced:customization:icons

It talks about Locus folder but does not specify where to find it, that should be added.

Also, it does not work. I have on my SD card following folder: /SD card/Android/data/menion.android.locus/files/Locus/

I created folder icons in it and put a zip file into it (I am trying to attach the file, not sure if it works, it is a zip file with four png icons in root). I then restarted Locus. My custom icons are not accessible. Am I doing it wrong or has it stopped working? I am on Android 12, Locus Silver.