How to generate favicon based on custom logo?


sorry if this question has already been answered, I’ve been searching for a while and haven’t found anything so far.

From the admin doc we can read:

According to the parameters you have set, Nextcloud will automatically generate favicons and a header logo depending on the current logo and theming color.

It seems to be trivial for everyone but for the life of me I can’t get it working. Furthermore, I don’t have any clue (neither where to look for them) if some process fails and why. Is it possible to trigger this favicon generation?

FYI I have all the required dependencies installed. My nextcloud version is 19.0.10-apache (dockerized).