It now works in the standard display, thanks for the download link!
Despite the changes in the shared.php there is no change in the NanoSD display, but that's not too bad, I have the standard display...

It's a pity that you won't be able to update the NanoSD display, but you will have your reasons for that.
I thank you for the fast and competent help, this is not self-evident nowadays!
Edit: i have found another little issue:
The left field represents the average wind speed, right? But the Beaufort value displayed is linked to the current wind speed, not to the average wind speed displayed in the field. So the BFT value should probably be in the field of the current wind speed and the max-value texts from the current wind field in the average wind field. Simply said: exactly the other way round as current...

Best regards
Mike