"." as thousand separator in Main UI via State Description / Pattern

Thanks a lot for all the hints!

So just to double-check, to not mess up the wrong parameter, before I keep messing around with internals:

  1. My raspi-config is set to the profile de_DE.UTF-8Ok from what I can see.

  2. In my openHAB "Regional Settings, the measurement system is set to “metric” and language is “English” → Ok from what I can see.

  3. In the karaf-console, as mentioned here, the reading user.country is the one I have to change as described in the post, if I want to keep openHAB’s language as “English” and the number formating with “.” as thousand separator. Correct?

user.country=US
user.dir=/openhab/userdata
user.home=/openhab
user.language=en
user.name=openhab
user.timezone=Europe/Berlin

Observation: Strangely I do not see any entries with something .format.